Reason and diagnosis of car misfire

Usually under normal circumstances (no trouble light, sufficient fuel oil), the reasons of the misfire are:

1, the fuel filter clogging

2, fuel pump filter clogging

3, the spark plug whether carbon serious or ablation

4, start the motor does not work

5, cold start oil pump oil supply not in time

6, the lack of fresh air or fuel is in short supply

The top four is component failure, need to repair or replace.

5 kinds of can solve, to the following:

Into the key first, and then hit the ignition file (on), such as about 5 seconds. Because the ignition, whole vehicle electric circuit, can let electrical equipment work, 5 seconds can make oil pump have enough time to put the fuel pump to the nozzle. At this time of the keys to the car, car can be started. And it starts, the engine and whole vehicle electrical equipment maintenance, and start the comfortable.

6 types of solution:

Starts on the pedal. The throttle opening increases, the volume and fuel injection quantity increase, it is easier to start.

There are many reasons that make cars won't catch fire, including circuit breaker, storage battery no electricity, the engine intake, etc., but these failures will call thespecial, must go to the repair shop.

The most common is two kinds of circumstances: < 1 > is the battery without electricity, pay attention to the battery life of general life in 2 years 80000 km battery kui electric car will report to thespecial what need reminds is commonly idle cases inefficient no charge!

< 2 > is a general love go wrong is the oil pump oil supply system peacetime attention to the refueling station in don't go to! Then regular cleaning spray nozzle.

Too many reasons, such as fault, ignition switch, starter battery's dead fault dislocation, timing, ignition coil, oil pump, fuel supply, crankshaft position sensor and other electronic components damage will cause the car can't start properly. There is no way to avoid, the only problem to check repair shop

Check whether the battery power is enough

Check whether the oil is best diagnostic instrument check engine sensors for problem crankshaft position sensor is generally the problem is out of the car

Engine can't fire, is one of the most common fault of automobile. Won't fire have two situations: one is sound could be heard from the rotation of the starter, but can't start the engine. The key is another twist what sound was heard. The first kind of circumstance is the starter work, but the engine does not work. This kind of situation is more complex, because this might be one of many kinds of fault causes. Rarely have two or more than two failures occur at the same time, but also can't say absolutely.(1) may be first or electronic circuit fault. The phenomenon of what happened is very suddenly, without warning. The fault circuit are: fuse, high pressure coil circuit, low voltage circuit breakers, center wire falls off, distributor rotor leakage, damage of the spark plug. Electronic fault is mainly refers to the central computer control panel lose function.(2) and then the oil circuit malfunction. Stall often have engine powerless, caused by the failures of oil gas pedal on a symptom of cotton. Oil failure may occur parts: oil pump failure, oil impassability, oil filter clogging, spark plug carbon deposition, damage to the nozzle, and so on. Sometimes happen fuel tank is empty and owners don't know. Add a few litres of petrol, it solves all problems.(3) the last may also be a mechanical failure. Common mechanical failure is: time zone (chain) rupture, leakage of cylinder pressure and so on. The second is not even start the machine work or work. This time need to check first thing in the battery or battery. There are many ways to check if you have a voltmeter that is better. Connected to the battery is negative, then turn the ignition key. At the moment of switched on, if the voltage indicator suddenly fell below 8 volts, there must be something wrong with your battery. No voltmeter is also just as well, you can use a small bulb 12 v and a power supply cord to instead. Method is the same, if the light bulb suddenly dimmed many obviously, also indicates the battery aging. In many cases, the battery has failed, but can also lit headlamps. This is not surprising. Ask only if the ignition moment, to do inspection to the performance of the battery, because at that time it has the largest load. There is a simple way: look at the battery of the outer wall with the naked eye, if found already expansion deformation, means absolutely needs a new battery. Start the cause of the machine doesn't work in addition to battery, and it is also possible that damage of ignition switch, ignition relay is damaged or start the machine itself. In addition, also check the grounding line and the fuse.

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