Automotive shock absorber is used to suppress the shock of spring when the shock and the impact from the pavement. The spring can be used to filter the vibration of the pavement, but the spring itself will have a reciprocating motion, and the shock absorber is used to suppress the spring jump. Through Auto Diagnostic Tool checking, the shock absorber is too soft, the body will be jumping up and down, shock absorber is too hard will bring too much resistance, interfere with the normal work of the shock absorber. Teach you how to maintain the working effect of shock absorber and how to check it.

1, Oil seal gasket, sealing gasket rupture damage, storage cylinder cover nut loose. May be oil seal, seal gasket damage, should be replaced with new seals. If you still can not eliminate oil leakage, should pull out spring strut, if feel the card or not at that time, light and heavy, then, using the gap between Launch X431 V Pro or Launch X431 Diagun III tool to check the piston and cylinder is too large, shock absorber piston connecting rod for bending, the piston connecting rod surface and the cylinder have scratches or marks.

2, Press firmly on the bumper, then release, if the car has 2 or 3 times to jump, then the shock absorber works well.

3, when the car slowly driving and emergency braking, if the car more intense vibration, there is something wrong with the shock absorber.

4, Remove the shock absorber to its upright, and the lower end of the connecting ring folder on the vise, pull compression damping lever several times, then there should be a stable resistance, pull up resistance should be greater than pressed down resistance, such as resistance to unstable or no resistance may be internal shock absorber valve parts lacking fuel or damage should be repaired or replaced.

5, in determining the shock absorber problem or failure, should first check the shock absorber for leaks or traces of old oil spills.

6, To make the car drive 10km on the poor condition of roads on the road parking, touch the shock absorber shell, if not very hot, no resistance in the shock absorber, shock absorber does not work. At this point, can be added to the appropriate lubricating oil, and then test, if the shell fever, for the shock absorber internal lack of oil, should refuel; otherwise, the shock absorber failure.

7, if the damper does not leak phenomenon, should check the shock absorber connection pin, connecting rod, connecting hole, rubber bushings and other damage, sealing off, break or fall off place. If these were normal, should be further decomposed shock absorbers, check with the gap between the piston and cylinder is too large cylinder with or without injury, the valve seal is good, the valves and valve seat are tight fitting and Save Dilatation shock absorber spring is too soft or broken, take grinding to repair or replace parts of the approach according to the situation.

8, In addition, shock absorber in actual use will rattle the fault, which is mainly due to the shock absorber and the steel plate spring and frame or shaft of the collision, the rubber pad damage or loss and damper dust-proof cylinder deformation, caused by insufficient oil should be to identify the reasons, to be repaired.

9, shock absorbers after the inspection, repair should be in a special test stand performance test, when the resistance frequency at 100 ± 1mm, which stretch stroke and stroke compression resistance should meet the requirements, showed normal shock absorber.

I suggest that you use by bumper way to check on how the working conditions of the shock absorber. Because this approach is simple and relatively less time-consuming, but also very intuitive and accurate test results. You should regularly check the shock absorbers have no oil leakage, and if there is leakage oil will affect its work, should go to 4S shop use professional Autel MaxiSys Pro MS908P or Autel MaxiSys Mini MS905 tools for maintenance.

Source: http://www.focalobd.com/blog/maintenance-and-inspection-method-of-automobile-shock-absorber/

Posted by: obdtools at 03:42 AM | No Comments | Add Comment
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The engine timing belt also called a toothed belt, The crankshaft and camshaft are connected by the above tooth groove. We know that the engine is in normal and stable work, the movement of the piston position, the valve open and close time, fuel injection and ignition time must be synchronized, and this is accomplished through the timing belt, you can use the Auto Diagnostic Tool to check the timing belt working performance.

Timing belt belongs to the rubber parts, with the increase of engine working time, timing belt and timing belt accessories, such as timing belt tensioner and pumps will wear or aging. If can cause the vehicle broke down after fracture belt, the engine internal valve damage, serious can cause the abandonment of cylinder cover. Not only to spend more, but also a long time to repair. Therefore, we need to use the Launch Diagnostic Tool or Autel Diagnostic Tool regularly to check and maintain the timing belt.

Check automobile engine belt consists of two elements:
First, check the belt tension, then you can use the thumb, strongly pressed the middle two belt pulleys. The pressing force of about 10kg, if the reduction of the belt is about 10mm, is considered proper belt tension exactly. If excessive pressure is considered insufficient belt tension. If the belt hardly occurs reduction is considered excessive belt tension. When the lack of tension, the belt is prone to slipping. The tension is too large, it is easy to damage various auxiliary bearings. For this reason, it should be related to the adjusting nut or bolt loosen the belt tension adjustment to the best state.

In addition, it must be noted that the wear of the belt. Old belt badly worn, the belt and pulley contact area dropped. Then as long as the force of a press belt, the belt will sink deep into the pulley groove. If the belt rubber is aging, must promptly replace the new belt.

Xtool PS2 or Autoboss V30 SPX tool inspection data show that cars generally every 80,000 km replace the timing belt; five-valve cars are generally replaced every 60,000 kilometers per timing belt. It should be noted when replacing the timing belt, appendages such as tension pulley, water pump should be replaced together.

Source: http://www.focalobd.com/blog/automotive-timing-belt-function-and-check-methods/

Posted by: obdtools at 03:45 AM | No Comments | Add Comment
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Nano fuel additive is a functional material to make up for the defects of the fuel in some properties and to give some new properties of fuel. It has washing, dispersion, emulsion breaking, antioxidant, promoting burning, corrosion, rust, lubrication, cleaning function. According to Auto Diagnostic Tool tests show that nano-saving device is mounted on the pipe of the car, after the installation of this equipment can purify exhaust gas by 50% -90%, 10% -30% fuel savings, enhance the power of 10% -30%, reduce engine noise, suppression coke production, clean combustion and prolong engine life.

Maintenance and good driving habits is the key to saving, The best fuel-efficient way is at ordinary times to use the Launch X431 PAD or Launch X431 GDS tools check vehicle, to develop good driving habits. Do not always emergency braking or hard acceleration. Energy-saving cars "four bogey." A bogey, since often require hard acceleration, braking, fuel consumption ratio will increase 2-3 times uniform; two bogey, pay attention to traffic conditions ahead, without prior dodge or slow down in advance, the car will see the red light or experience, rely on the emergency brakes, natural fuel soared; three bogey, high speed and low-speed operation, the engine idle for a long time; four bogey for a long time over economic speed driving.

Nano fuel additives Product features: can effectively protect the engine, it can increase the useful life of an automobile engine and some 5 - 10 years, based on Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool checks show can effectively fuel-efficient 5-16.6%, remove carbon deposition by more than 95%, the noise of the engine has also dropped. Nano fuel additive has a clean, dispersion, emulsion breaking and promote burning effect, after clear the carbon deposit in fuel oil, through the "microburst", promote burning, finally to reduce emissions, eliminate exhaust black smoke.

Source: http://www.focalobd.com/blog/nano-fuel-additives-basic-knowledge/

Posted by: obdtools at 03:34 AM | No Comments | Add Comment
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The car drive belt is responsible for all parts of the movement, if it bad the car can not move. Because the engine is driven by a belt drive all kinds of auxiliary mechanism, such as an air conditioner compressor, power steering pump, alternator, etc., if the belt is broken, or there has been slippage, will be related to the loss of the auxiliary mechanism, or its performance decline, thereby affecting the normal use of the car. Therefore, it is necessary to check the drive belt regularly using Auto Diagnostic Tool.

Belt inspection method is very simple. First, check the belt tension, select the longest unsupported belt span intermediate applying moderate pressure with your thumb, if the reduction is about 10 mm in the belt, that the belt tension is just right. If the belt tension is too large, or too loose, it could result in slippery tooth, transmission is incomplete. And adjust the belt too tight, so that the belt is easy to tensile deformation, but also accelerate the pulley and bearing wear. For this reason, it should be related to the adjusting nut or bolt loosen the belt tension adjustment to the best, if you are not sure the best, you can use the Launch X431 V+ Pro3 or Launch X431 CResetter II tool check the belt the best condition.

In addition, in daily inspection should pay special attention to the wear of the belt. Because if the belt wear is serious, it will cause the belt and the belt pulley contact area to drop sharply. At this time, as long as a pressure belt, the belt is deep down to the groove of the belt pulley.

Also, if you find the belt surface cracks and spalling cracks appear phenomena such as sound or belt slipping occurs, indicating the belt may be broken and must be replaced immediately. If not promptly replaced, the belt once in a moving way break, the vehicle will not be normal driving.

In actual use, check and replace the automobile belts are very complex, generally professionals using the Autoboss V30 SPX or Autel Maxidiag Elite MD702 tool operation. Moreover, because the price of the belt is not particularly expensive, often change in time before the arrival of the service life of the belt is a common choice.

Source: http://www.focalobd.com/blog/automotive-transmission-belt-regularly-checked-guide/

Posted by: obdtools at 06:28 AM | No Comments | Add Comment
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Automobile circuit usually have starting circuit, power supply circuit, lighting and light signalling device circuit, ignition circuit, auxiliary circuit device, electronic control system circuit, instrument information system circuit composition. So many friends in the process of driving the car will be found auto electrical systems fire, when people are very anxious, do not know what is going on. So today we analyze why the car circuit system catch fire, of course, need professional OBD Diagnostic Tool to be checked.

Among the car ignition accident, car circuit fire occupy a large proportion of spontaneous event. This circuit is aging and the car circuit load is too high is the reason. First, since the engine work, the ignition coil high temperature, easy to make high-voltage ignition wire insulation softening, aging, crack damage, ignition high-voltage insulation breakdown easily produce high-voltage leakage, short circuit leading to spontaneous combustion ; second, the car has a growing number of electronic control technology, intelligent vehicle widely used, Launch X431 Diagun III or Launch X431 Creader VII+ tools to detect data show a substantial increase in the power consumption of automotive electronics accordingly. Auto electrical systems on limited load space, automotive microcomputer, electronic components, various sensors circuit systems are likely to cause damage, since a large number of cars increase the variety of additional electronic equipment, may also increase the burden on car circuit, causing spontaneous combustion fire.

Car circuit maintenance is very important, a lot of the cause of fire is circuit aging, many friends think now car maintenance is the car's appearance maintenance, do essential for the maintenance car circuit, you can also use Autel MaxiSys Mini MS905 or Autel MaxiSys MS908 tool regular inspection car circuit to ensure the safety car circuit.

Source: http://www.focalobd.com/blog/why-the-car-circuit-system-will-catch-fire/

Posted by: obdtools at 03:03 AM | No Comments | Add Comment
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Now city traffic condition is getting worse, car stop-go situation has become the habit of the driver. So, portable, easy these two features automatic car has quietly become the first choice for most people. Although automatic car easy and convenient, but because of the automatic transmission system is very sophisticated, if the automatic transmission fails, we need to use a professional OBD Diagnostic Tool repair, and expensive, and therefore, the automatic transmission need to be more careful care and maintenance.

The automatic transmission oil can not only play the role of lubrication cooling, but the main thing is to transfer power between the engine and gearbox. Lubricating oil temperature is generally around 120 degrees Celsius, so demanding on the quality of the oil, and must be kept clean. First frequently used Launch X431 V Pro or Launch X431 IV GX4 Master tool to check the automatic gearbox oil level is normal. Check method of automatic transmission fluid and engine oil is not the same, need to be preheated to about 50 ℃, the gear lever again after a short stay in each block in the parking and the oil dipstick corresponding normal oil level should be between the highest and the lowest line, if not, should be added in time.

In most cases, when we replace the automatic transmission oil is to remove the screw automatic transmission oil pan to miss the old oil then add new oil, but this can only put about a small part of the new oil, and there Most of the old oil remains in the gearbox. If demolition sump oil change way, you can put 70 percent of the new oil, so as to ensure the transmission of health. Presently preferred method is dynamic oil change oil change, using a dedicated gearbox cleaning equipment, the full cycle of old oil, drained and then add new oil, so that the oil change rate of 90%.

As the vehicle traveling road is rather special, road congestion, poor air quality, is easy to cause transmission oil oxidative deterioration, according to Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool inspection data indicate that the deterioration of the transmission oil increased wear of friction between the film and increase fuel consumption, if not to change new gearbox oil for a long time, will cause oil particles increases and block oil, blocking the plunger, and even a shift impact, so the transmission oil must be replaced periodically.

Source: http://www.focalobd.com/blog/how-to-maintain-the-car-automatic-transmission/

Posted by: obdtools at 06:26 AM | No Comments | Add Comment
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Configuration 8V engine and manual transmission Citroen. As the hot weather, frequent use of air conditioning systems, and found that air conditioning cooling effect is getting worse, specifically the phenomenon as follows: Press the air conditioning and refrigeration switch (Electric No. 584), air conditioning compressor to operate properly at first, but with the extension of working hours, use Auto Diagnostic Tool testing data showed that the air conditioning compressor electromagnetic clutch is frequent absorption and separation, intermittent failure caused by air conditioning refrigeration function.

Air conditioning system circuit diagram, the air conditioning compressor electromagnetic clutch frequent closing and analyze the cause of the fault separation, according to the possibility of making maintenance plan, and then to repair work as follows:
1) Check the engine compartment fuse box (Electric No. 52) of the fuse F12, normal. In the case of opening and closing of the ignition switch, voltage with a multimeter block measuring the terminal voltage connector 113 BIIA results were obtained for the battery voltage and 0V, normal. In the case of opening and closing of the ignition switch, air conditioner switch assembly measuring terminal 7 NA1 voltage, battery voltage, respectively and 0V, normal.

2) Replace the air conditioning switch, the failure remains. Replace the air conditioning control box, the problem persists, that failure has nothing to do with these two parts.

3) In the case where the engine is not running and the operation of detecting the line pressure of the refrigerant, the refrigerant is obtained by the static pressure of 500kPa, the dynamic pressure of the refrigerant: a high pressure of 1300kPa, a low pressure of 140kPa. The above measurements were compared with standard values, in line with requirements. This ruled out due to the refrigerant pressure abnormalities lead to the air conditioning compressor electromagnetic clutch pull and separate frequent failure factor.

4) Check the coolant temperature control box (appliance No. 53) and the related wiring. External line there is no problem. Replacing the coolant temperature control box test, fault still exists. Continue to check the fuse box in the engine compartment fuse, no abnormality was found. Check the coolant temperature control box plug voltage terminal 15N4,15N15 in the ignition switch is turned on is the battery voltage, Launch X-431 PAD or Launch X431 GDS tool coolant temperature measurements show that the control box supply line is no problem, thus excluding the coolant temperature control box failure factor.

5) Check the coolant temperature sensor (electrical No. 910 for coolant temperature control box to provide coolant temperature signal) and the line, there is no obvious anomalies. Replace the sensor, the fault persists.

6) Check the evaporator temperature sensor (Electric No. 912) and the line of work, there is no appearance problem. Measure the resistance with a multimeter evaporator temperature sensor found resistance is too large. Replace the evaporator temperature sensor, test, fault completely disappeared, ending maintenance work.

The evaporator temperature sensor is a negative temperature coefficient thermistor, its resistance decreases with increasing temperature. When the resistance is too big a problem occurs evaporator temperature sensor, the signal voltage will become larger, air-conditioning control box will mistakenly believe that the evaporator temperature is less than 1 ℃. To prevent evaporator freeze, air conditioning control box off the air conditioning compressor electromagnetic clutch operating power. After a child, Autoboss V30 SPX or AUTOBOSS V30 Elite tool checks found that the evaporator temperature is higher than 3 ℃, began to turn on the air conditioning compressor electromagnetic clutch pull. Again and again, the results of the air conditioning compressor frequent start of the fault phenomenon. The evaporator temperature sensor is a vulnerable part, only after the damage can be replaced.

Source: http://www.focalobd.com/blog/citroen-car-air-conditioning-compressor-frequent-starts/

Posted by: obdtools at 03:43 AM | No Comments | Add Comment
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Everybody for car batteries and air filter should be familiar with. So we usually listen to music while driving in the open air or blowing cold air, which must support the job by a car battery. And if the battery is no electricity or damage, the car is unable to start, so the need for regular use Auto Diagnostic Tool to check the vehicle battery. Then the air filter plays a filtered air entering the engine, to provide clean air for the engine, reducing engine running wear. Today we take a look at the two components of the maintenance guide.

Car battery:
General, automotive battery life is two years. Some owners usually well maintained, can extend this use time. If maintenance do not get bit, less than two years to be replaced. If the battery has been aging and not timely replaced, repeated charging and discharging can damage the internal battery plates and an electrolyte. through Launch X431 Diagun III or Launch X431 V+ Pro3 tool check data show that: the battery capacity will be reduced and eventually run out of power, the engine can not be started.

Air filter:
General car mileage of forty thousand kilometers or two years can be considered to replace the air filter. If it often in some dusty environment, the replacement cycle would go ahead of some. If no timely replacement of the air filter, increases mileage and filter clogging. And reducing engine power, accelerate the ability to reduce, reduce fuel economy, cylinder due to dirt and damage, air supply is insufficient.

So now we should all know the importance of car batteries and the air filter. Just remember that your battery and air filter coming two year when we should use Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool to check usage, it should be replaced. Usually in the car maintenance cycle time, we must check the battery and air filter, if there is a serious aging, damaged the situation, it should be replaced.

Source: http://www.focalobd.com/blog/air-filter-and-car-battery-maintenance-guide/

Posted by: obdtools at 03:42 AM | No Comments | Add Comment
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Filter is the key projects when we maintenance to the car, oil filter, air filter, fuel filter, the so-called "three filter" Conservation has always been a point of attention. In addition to these three common commonly used filters, there is a transmission oil filter, its maintenance methods very few people know, is very simple, just use the OBD Diagnostic Tool can be.

The conservation process in the daily inspection car, the car transmission oil filter is rarely mentioned, unless damaged, affecting the transmission operation, otherwise, its maintenance is easy to be overlooked in. Because in most cases, transmission oil filter is not like oil, air or fuel filter as easy to replace. In fact, since the automatic transmission oil, ATF filter is a device for protecting the second main assemblies, so it should be kept clean or replaced in time according to the Launch X431 V Pro or Launch X431 IV GX4 Master equipment recommended by the manufacturer.

The automatic transmission usually paper filter, felted membrane filter or oil filter to filter out the dirt. Asian carmakers like using a membrane filter; and European and American manufacturers are more inclined to paper or felt filter.

Some car manufacturers have introduced long-life or maintenance-free transmission. The transmission no dipstick device and its normal maintenance, ATF and filter replacement cycle of up to 160,000 km / h.

For the ATF filter, you can't judge the performance of the filter, unlike oil filter to be replaced follow along as oil, unlike the air filter, you can take it down and clean it, transmission oil filter can only rely on inspection and maintenance process maintenance personnel inspection tips. It also reminds us that we must have understand of basic car maintenance knowledge, or you can use the Autel MaxiSys Pro MS908P or Autel MaxiSys MS908 professional equipment to check the filter work performance.

Source: http://www.focalobd.com/blog/how-to-maintenance-of-automatic-transmission-oil-filter/

Posted by: obdtools at 06:11 AM | No Comments | Add Comment
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EFI engine is currently using a wide range of devices on the car, compared with the conventional carbureted fuel system, EFI engine fuel supply system, not only complex, but also parts with precision. When cleaning maintenance to must pay special attention to, when necessary also need to use Auto Diagnostic Tool to check the engine oil supply system.

During cleaning maintenance, some parts can not be disassembled and dismantled, some parts assembly requirements is high, which makes fuel injection system than carbureted gasoline vehicles are more vulnerable to gasoline in the glial, sediment hazards, resulting in clean work is very complicated.

Engine fuel supply system, into the exhaust system is clean, has a decisive influence on car driving performance and even. Due to the influence of driving environment and fuel quality, the injection nozzle, intake manifold into the exhaust valve and combustion chamber and other prone resin sediment, through the Launch X431 PAD or Launch X431 GDS tool inspection data show, affecting the normal fuel supply, caused by fuel injection quantity control are not allowed, atomization adverse, oil pressure regulator failure, resulting in engine idle speed instability, poor acceleration, knock, lack of fire, increased fuel consumption, exhaust emissions exceeding etc. fault phenomenon occurs.

In order to clean the oil supply system need to solve the problem from the inside, they usually avoid demolition clean way. Vehicle cleaning job by Xtool PS2 or Autoboss V30 SPX special equipment and cleaning agents, under certain pressure and flow control, intake manifold, fuel injectors, intake and exhaust valves and thoroughly clean the combustion chamber, in order to restore normal operation of the fuel system to ensure good driving performance of the car.

Source: http://www.focalobd.com/blog/how-to-clean-efi-engine-gasoline-injection-system/

Posted by: obdtools at 02:58 AM | No Comments | Add Comment
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New buy the car engine appears knock phenomenon. I believe that there are some people who have a little in-depth understanding of the working principle of the automotive engine, should understand the engine appears knock whether quality problem. if you don't have any information about the engine of the car, then we look together, what is knocking? Why the engine will knock? What effect does the knock have on the engine? How to avoid the engine knock? Why use the OBD Diagnostic Tool to check the engine knock?

The so-called "knock" is not to say that engine would explode or violent shaking, but refers to the gasoline engine before the spark plug without ignition, sprayed into the cylinder fuel is because of the cylinder body and the high temperature and the occurrence of spontaneous combustion of a non normal phenomenon. The spontaneous combustion will not only cause engine cylinder in local temperature is too high, can not let fuel to participate in the work of the engine, resulting in power output in serious decline, resonance between the piston and cylinder wall, because of abnormal vibration caused by explosion is called "knock".

Engine knock is actually the most important reason is that gasoline grade is too low, we often say that the number 92, number 95 refers to the grade of gasoline, Gasoline label is neither refers to the purity, nor does it imply a lot of people often say that the so-called octane number, but gasoline anti-knock index, also known as anti-knock index.

Focus, Mazda 3 and other vehicles encountered the "knock", the manufacturers solution is to use Autoboss V30 SPX or AUTOBOSS V30 Elite tool for trip computer upgrade, the knock problem is solved.

Engine knock is not the most important step to upgrade software part, the modern automobile engine through hardware modifications also cannot let knock disappear, essentially the only solution is based on the actual demand of the engine, the correct selection grade of gasoline .

Recommend vehicle appear knocking, first switch to high-grade gasoline, suppress the occurrence of knocking fundamentally. Try to avoid prolonged idling stop, avoid high gear low speed driving, automatic models accelerate to overtake, use low gear when climbing or manual shift mode, can effectively reduce the production of coke, to suppress detonation engine protection is also very favorable. Timely use Autel Maxidiag Elite MD701 or Autel MaxiDiag EU702 tool to check the engine, regularly clean the throttle, using high-grade synthetic oil can also reduce the incidence of carbon, the same can effectively avoid the generation of knock.

Source: http://www.focalobd.com/blog/what-causes-a-car-to-knock-and-car-knock-solutions/

Posted by: obdtools at 03:29 AM | No Comments | Add Comment
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Engine in the working process to inhale large amounts of air, if the air does not through the filter, the dust suspended in the air is inhaled in the cylinder will accelerate the abrasion of the piston and cylinder. Between the larger particles into the piston and the cylinder, pass Auto Diagnostic Tool inspection showed that the dry and sandy working environment more seriously. Air filter is installed in the front of the carburetor or inlet pipe, have the effect of filter dust and sand in the air, to ensure adequate, clean air enters the cylinder.

Air Filter Feature:
1, Filtration precision: filter out all the larger particles (> 1- 2 um)
2, High filtration efficiency: reducing the number of particles through the filter.
3, To prevent the engine from early wear. To prevent air flow meter damage!
4, Low pressure, ensure that the engine has the best fuel ratio. Reduce the filtration loss.
5, Filtration area, high dust capacity, long service life. Reduce operating expenses.
6, Small installation space, compact structure.
7, Wet quite high, deflated suction phenomenon occurs to prevent the filter, the filter is causing the breakdown.
8, Retardant
9, Reliable sealing performance
10, Good price
11, No metal structure. Environmentally friendly, reusable. Conducive to storage.

Air filter replacement cycle is generally recommended cars each driving 15,000 km replacement. Often working in the harsh environment of the vehicle should be replaced once not more than 10,000 kilometers. you can use Launch Diagnostic Tool or Autel Diagnostic Tool to check the engine's performance, air filter life, the car is 30000 kilometers, commercial car is 80000 kilometers.

Source: http://www.focalobd.com/blog/air-filter-performance-feature/

Posted by: obdtools at 02:54 AM | No Comments | Add Comment
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The fuel additive can make up for the quality problem of the fuel itself and the shortage of the automobile machinery manufacturing limit, through the Auto Diagnostic Tool checking data show: fuel additives remove carbon deposits have to save fuel, reduce emissions and enhance the power.

More than 2 years of the car must be use fuel additives, if not continuous use can also continuously for more than three times every a month and a half, if the interval is too long suggestions with large doses of some, truly effective removal of carbon deposition, improve fuel environment.

Fuel additives Selection Considerations
1, Understand the ingredients of the additive product, this is the main factor determine product efficacy, inferior additive products for fuel, and even has a harmful effect on the engine. Many of the additives on the market have exaggerated effect, some only have clean function, there is no help for power, truly effective additives, after use of the first tank generally have obvious feeling.

2, The product is safe and reliable, many products after use will cause acid corrosion of the engine, or metal residue, but caused great damage on the car, so choose is sure to choose non corrosive, non residual brand.

3, In the selection of the additive when it is best to use well-known brand additive. Secondly, we can pay attention to product packaging certification mark, query the security code.

4, Whether the product has a brand trademark, whether the packaging has a bar code, whether the product has the quality of the authority of the certification, if it is imported products are through the formal channels. Typically use fuel additives, after a month, using the Launch X431 V+ Pro3 or Launch X431 IV GX4 Master tool to check, engine performance can significantly improve a lot.

Source: http://www.focalobd.com/blog/fuel-additive-use-common-sense/

Posted by: obdtools at 03:19 AM | No Comments | Add Comment
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Many drivers see lubricant color black, they think oil quality has been a serious deterioration, and replace it, resulting in waste. Normally, car oil at just replaced, color is golden yellow, are generally will added clean dispersant, the purpose is to wash the adhesion and black carbon deposition film on the piston down and dispersed in oil, reduce engine generate high temperature deposits, so the use of lubricants colors tend to darken after a period of time, but this time the oil does not deteriorate, the use of oil is serious deterioration, needs to be replaced by the Auto Diagnostic Tool can determine whether the need to replace, is not observed the oil color black, concludes that need to be replaced lubricant.

Under normal circumstances, regardless of any brand of lubricating, its life cycle can be maintained at more than 5,000 km, to the 8000 km -10 000 kilometers need to replace oil. Only when the long-term bad driving habits, such as frequent Jicha, refueling too fast, the speed at 3000 rpm or more frequently, oil change intervals will advance.

After a period of time, engine oil the color will gradually darken, why lubricant color will change to black?
First, the fuel in the olefin content, sulfur content is high (gasoline engine is easy to form sludge, diesel engines easy to form smoke stains), easy to make the engine oil black, and thus fuel quality is the source of oil black.

Second, the different structure and working conditions of the engine, it is easy to make gasoline engine oil sludge generated, form smoke stains incomplete combustion of diesel engine, thus lubricant turning black, you can use a Launch X431 V Pro or Launch X431 Diagun III tools to check these phenomena.

Third, In order to overcome the fuel and mechanically induced results, lubricating oil to adding dispersant to prevent sludge or smoke stains on the cylinder formation deposited in the film or the body, the higher the quality of the oil, dispersed better, but oil is volatile black, so high quality oil, than the poor oil variable black faster.

Fourth, Oil color black produced sludge is related to launch a pilot time overly high temperature operation, and not to clean the engine when the car in the oil and oil bottom, associated with the filterability of oil filter.

Engine oil replacement time, premature cause lubricating oil waste, too late will increase engine wear and shorten engine life and maintenance cycle, so you need to use Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool to check the engine. The deterioration degree of lubricant has relationship with the performance of automobile, repair technology, driving level, road and weather condition, lubricant quality, etc, uniform regulations drain intervals sometimes not entirely realistic. If after a period of use of lubricants appear dimmed color, white, indicating filling oil mixed with water, which emulsion occurs. The basic properties of lubricants has been completely lost, the engine cooling system and combustion system for leaks, should not continue to use.

Source: http://www.focalobd.com/blog/lubricating-oil-color-black-need-to-be-replaced-immediately/

Posted by: obdtools at 02:48 AM | No Comments | Add Comment
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What is the octane improve agent? What does it do? Octane improver is to increase the octane rating of automotive additives, can be used OBD Diagnostic Tool to check out the car's octane, octane improve agent is a kind of common gasoline additives, which is popular in the additive products.

The most effective way to improve the engine efficiency is to improve the engine's compression ratio, but the compression ratio of an increase, knocking combustion significantly enhanced, higher-octane gasoline can reduce detonation, as the engine compression ratio continues to improve, This forced refineries to produce high-grade gasoline. Octane increase only to reduce engine knock, and reduce fuel consumption, thereby increasing the economic efficiency, Launch X431 V Pro or Launch X431 PAD tool inspection data show: Improve the gasoline octane number 1 unit, saving gasoline 1.3%.

For a long time, oil prices have been stubbornly high, bring the owners a little cost pressures, how to reduce the fuel consumption has been a concern. In addition to source fuel from outside, how can the existing fuel play to the best effect is also very important. Presumably this is the octane value improver where it! Improving fuel quality, to the full combustion, reducing fuel consumption.

Of course, as a gasoline additive, in the selection or according to the specific circumstances of their own car, everything from reality, the effect of the additive to play to the largest , you can use the Autel MaxiScan VAG405 or Autel MaxiDiag FR704 tool to check, it will prompt you to use what kind of gasoline additive.

Source: http://www.focalobd.com/blog/what-is-the-octane-improve-agent/

Posted by: obdtools at 03:08 AM | No Comments | Add Comment
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Through Auto Diagnostic Tool checking data found paper air filter has the following advantages:
1) Filter efficiency up to 99.5% (oil bath air filter 98%), dust transmittance of only 0.1% -0.3%;
2) structure compact, can be installed in any orientation, not by vehicle parts layout constraints;
3) when maintenance is not consume fuel , but also save a lot of cotton yarn, blankets and metal materials and other substances;
4) the quality of small, low cost.

Based on the above advantages, car engines use air filter paper core is becoming more common. The key of good paper air filter is to keep its sealing performance, prevent unfiltered air from bypass entering the engine cylinder.

Paper air filter installation and maintenance guide
1. During installation, air filter and the engine intake pipe between rubber pipe coupling or direct coupling must be tight and reliable, to prevent leakage, the filter must be installed at both ends of the rubber gasket surface; fixed wing air filter housing nuts can not be tightened too much, so as not to crush paper filter.

2. In use, the air filter to prevent rain water paper, because once a large amount of water adsorbed paper, will greatly increase the intake resistance, shorten the service life.

3. Some vehicle engine is equipped with Tornado air filter, paper filter ends of the plastic cover is shroud cast blades rotating air, Launch X431 IV GX4 Master or Launch X431 V+ Pro3 tool data showed that: 80% of the dust separated by centrifugal force and collected in collection Dust arms, to dust paper filter for inhalation of dust was 20%, the total efficiency is about 99.7%.

4. During maintenance, paper filter never use oil cleaning, otherwise the paper filter will be failure, but also easily lead to accidents. When maintenance, use only the vibration method, soft brush division (which folds down to brush) or compressed air cleaning methods remove the attachment surface of the filter paper dust, dirt. Part of the strainer, should be promptly removed the dust parts, pipes, etc. of leaves and cyclone dust. Even if every time meticulously maintained, the paper filter can not completely restore the original performance, the intake resistance will increase, therefore, generally when the paper filter is required when the 4th maintenance, it should be replaced with a new air filter. If the paper filter rupture, perforation or unglued paper and cover other issues, should be replaced immediately.

Air filter is the air enters the engine from the first hurdle, automobile engine is very precise parts, the tiny impurities will damage the engine. Therefore, in the air into the cylinder before, must first go through the fine filtration of air filter, can enter the cylinder. You can use the Autel Maxidiag Elite MD701 or Autel MaxiTPMS TS601 tool regularly to check the engine, and the air filter status is related to the engine's life.

Source: http://www.focalobd.com/blog/paper-air-filter-installation-and-maintenance-guide/

Posted by: obdtools at 05:40 AM | No Comments | Add Comment
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Oil filter is one of the four filters, the other three filters were air filter, air conditioning filter and fuel filter, oil filter is filtering effect of oil impurities to protect the engine does not suffer wear, You can use OBD Diagnostic Tool to check whether the engine is wearing.

Oil filters filter principle can be divided into three categories: mechanical separation, centrifugation and magnetic attraction.

Mechanical separation according to its function and form can be divided into pure mechanical separation, aerial separation and adsorption separation, purely mechanical separation of common mesh filter, on the surface of the filter material has a certain size of holes, the oil of solid particles, the size is greater than the holes will be blocked on the filter material appearance, aerial separation is first attached to one or several small particles size is greater than their cavity the filter material on the inner wall of the cavity size smaller, then the particle because not pile up in the past, the formation of aerial phenomena, the filtering particle size smaller than the cavity size. Since the majority of particles in the oil is irregular, so overhead phenomenon is easy to form. And colloidal substances in the oil, use the Launch X431 GDS or Launch X431 V Pro tools inspection found that often adhesion on the surface or the inner wall of the cavity, the filter material is the adsorption separation.

The centrifugal separation is a rotor that causes the oil to rotate through a high speed, and the impurity in the oil is thrown to the inner wall of the rotor and thus separated from the oil.

Magnetic adsorption is the permanent magnet will be oil in the iron particle adsorption over. Don't let them in oil cycle back and forth, mechanical damage.

On filter classification, generally have the following methods:
1. According to the filter structure form classification: is there a wound rotor, scraping plate, etc.

2. By filtration fineness Classification: surface filtration and depth filtration.

3. After filtering way classification: surface filter and depth.

4. Arranged in the lubrication system by way of classification: a full-flow and bypass type.

Generally recommended 5000km replacement of oil filter, specific according to actual Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool inspection data to decide.

Source: http://www.focalobd.com/blog/oil-filter-working-principle-and-type/

Posted by: obdtools at 02:58 AM | No Comments | Add Comment
Post contains 388 words, total size 5 kb.

Steyr 91 series heavy-duty truck engine adopts a dry air filter. Hyundai increased use of paper air filter, high efficiency air filter paper, Auto Diagnostic Tool test data shows that only 0.1% to 0.3% transmittance of dust. Use paper air filter can reduce wear of the cylinder and piston, extending engine life. Should be used with care and attention to the following points:

(1) Master the characteristics of wd615 engine paper filter and cleaning method
This air filter, the outer filter element is treated with microporous filter paper, and the surface is treated by resin.. In the engine operation, the air filter through the microporous filter to the dust, ensure clean air into the turbocharger and then into the cylinder. Senior internal filter made of felt, a safety cartridge. In use, the filter will pick up around the outer layer of dust. Clean the air filter outside filter, not used water, oil, should prevent oil dip filter; commonly used method is to gently pat. Specifically: gently tap on the tire, beat the dust out, and then dried 0.4mpa the following air purge. When the purge should be blown inside out.

(2) Regular cleaning and replacement of filters
In Steyr 91 series of heavy-duty vehicles so that there shall maintain provisions for periodic air filter cleaning and replacement, in order to avoid excessive dust adhered to the filter, causing the intake resistance increases, reducing engine power and increased fuel consumption. Cars with 2000 ~ 4000km, air filter (inside and outside) clean, replace the filter at the outer 12000km, Launch X-431 PAD or Launch X431 Diagun III tool checks show that: in the best six months to replace the filter. If the filter is damaged should be replaced promptly.

(3) Installed correctly
In the inspection and maintenance of air filters, the seal on the filter pad must be installed well. Rubber gaskets easy to aging and deformation, the air is easy to flow through the gap from the seal, the dust into the cylinder. If the gasket aging, the best replacement of the air filter. External filter meshes such as rupture or the upper and lower end caps glued joints cracked should be replaced.

Dry air filter is passed through a dry filter, such as paper filter, the air impurities in the filter. Light vehicles (including cars, mini-cars) is generally used as a single-stage air filter. Its oval or elliptical shape and flatbed. The filter material is filter paper or nonwoven fabric. Filter cover with metal or polyurethane, the shell material is a metal or plastic. At rated air volume flow, original filtration efficiency filter should not be less than 99.5%.

Heavy duty vehicle due to poor working conditions, it must be more than one air filter. The first stage cyclone pre-filter (such as a blade ring, swirl tubes, etc.), used to filter impurities coarse particles, filtration efficiency above 80%, the second stage fine filter is a porous paper filter (commonly referred to as primary filter), the filtration efficiency of 99.5%. after the main filter element and a security filter, its role is in the installation and replacement of the main filter element, or in the main filter accidental damage, to prevent dust from entering the engine, you can regularly for the use of Xtool PS2 or Autel Maxidiag Elite MD703 tools to check the engine performance, the core material more secure non-woven fabric, but also the use of filter paper.

Source: http://www.focalobd.com/blog/steyr-91-series-heavy-duty-truck-air-filter-maintenance-guide/

Posted by: obdtools at 03:18 AM | No Comments | Add Comment
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Wash the car is not just for the purpose of keeping car surface bright as new, a lot of time washing is intended to better protect the paint effect. But the seemingly simple car wash also prone to error, you can use the OBD Diagnostic Tool to easily check out the car problem.

Wash the car number should not be too frequent, otherwise it will accelerate paint oxidation, if the weather such as dust, dirt, rain, after the owner should to clean vehicles as soon as possible. Also, if a long time without washing car, the harmful material such as acid ingredients and dust in air erosion and adhesion, will accelerate the aging and damage to the car paint. Paint damage will make the body lose protection and oxidation of metal parts, causing the vehicle to earlier damage. Therefore, the car once a week is the best frequency.

When choosing a the sun is not very strong car wash is best, because the weather was there won't be because of the glare and bring damage to the car paint, and don't have to worry about because it's cloudy and residual moisture evaporation. Vehicle cleaning after the completion of inspection, It is best to use the Launch X431 V+ Pro3 or Launch X431 Creader VII+ tool to check the vehicle after cleaning, carefully check and wipe after pulled out of the vehicle cleaning area. This is because the body is not dry, machine cover, glass glue slot etc. easily attached to dust.

Many owners choose to do it yourself car wash, you should first select the car wash windless cool place, do not let the car in the hot sun or exposed to air, it should be noted once again choose the correct washing tools, wash the car before check whether Autel MaxiTPMS TS401 or Autel MaxiDiag Elite MD802 tools clean, at the same time, should master skills necessary in the car wash, wash the car at the beginning of the first wash car body in the sand, dust, etc., after the end of the car wash should wipe clean the car, use a towel to wipe should be separated with a car wash towels.

Source: http://www.focalobd.com/blog/cleaning-the-car-what-should-pay-attention-to/

Posted by: obdtools at 03:05 AM | No Comments | Add Comment
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Some owners for air-conditioning system maintenance, how to choose the right accessories to do air conditioning maintenance will encounter many problems. Due to the owners of vehicles are not familiar with, and don't want to use Auto Diagnostic Tool to check, so here we give you a introduction to buy these accessories:

1. How to buy air filters?
Air filter: quality of original brand quality long-term air conditioning filter with respect to the poor quality of ordinary Deputy plant air filter, in the service life and impurity filtration efficiency to far wins a chip. Can guarantee the higher impurity filtration efficiency and extend the maintenance cycle.

1. How to buy air filters?
2. Refrigerant How to choose?
Refrigerant: Pure brand R134a environmental refrigerant, it can ensure 2--3 years of life. Currently on the market of the refrigerant uneven, some good and some bad, media have exposed automotive air conditioning refrigerant sample test pass rate is currently less than 10%. If you use of counterfeit refrigerant in a short time can refrigeration, but long-term use, light will produce refrigerant leakage, resulting in automotive air conditioning and refrigeration effect is not good, will lead to serious damage to the air conditioning compressor, if use Launch X431 V Pro or Launch X431 IV GX4 tool to check in advance, can quickly check out the fault. So when buying refrigerant, must pay attention to choose the high quality brand pure refrigerant.

1. How to buy air filters?
Buy air filters, refrigerant and air conditioning cleaning agent must pay attention to product quality, quality air filters, air conditioning refrigerant and air-conditioning cleaning agent can play a very good protection, increase of air conditioning refrigeration effect, kill in air conditioning mold and bacteria, eliminate odor, recovery and the freshness of the air inside the car, but inferior air filter, refrigerant and air conditioning cleaning agent not only can not achieve the effect, but will damage parts of the air conditioning system, use the Autel MaxiSys Pro MS908P or Autel MaxiTPMS TS601 tools to check parts of the air conditioning system performance, inferior products will reduce the service life of the air conditioner and the human health will be affected.

Source: http://www.focalobd.com/blog/how-to-buy-automotive-air-conditioning-filter-and-refrigerant/

Posted by: obdtools at 03:09 AM | No Comments | Add Comment
Post contains 374 words, total size 6 kb.