To solve difficult problems cold-start
Failure phenomenon is reflected in the morning to start car the car owners have to start ignition several times to start after the severe jitter.
There are four possible reasons: 1. Spark plug need of replacement. 2. Ignition coil failures. 3. Nozzle blockage. 4. Cylinder pressure is too low.
Troubleshooting method is to cause the engine cylinder missing element 11 for testing. Computer Monitor displays the work of the ignition coils and the injectors condition. Spark plug of each cylinder test-fire testing, spark plug is working correctly. Finally, playing cylinder pressure testing, there are two cylinder-cylinder down the standard values. Depression caused by tank car was mainly due to intake and exhaust valves Mifengbuyan. This further confirms that the car’s good carbon deposition on the valve. Endoscopic observation of valves and found the door, especially into the intake and exhaust valves on the resin and carbon deposition is particularly high. Thus determined that it is precisely because so-valve Mifengbuyan coke combustion caused by inadequate. Car coke and gum have been very serious, with split-free cleaning has not completely cleared, so need to split cylinder head clean coking.
Open the engine cylinder head has been found that carbon deposition is very serious and will coke removed, re-assembly, re-start (this time for the cool car state), one before the car, the engine did not shake, and failure phenomenon disappears.
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