Overhaul process of Chang 'an Star SC6363A not catching fire

The maintenance process is as follows:

1, check the carbon canister and solenoid valve.

2. The computer retrieves the fault code and checks the engine control unit, engine data flow, fuel adjustment value and oxygen sensor value. Data of main sensors such as the absolute pressure sensor of intake manifold and the throttle position sensor (TPS). Check the exhaust manifold and three-way catalyst. The engine voltage is high and the spark plug is normal, which basically eliminates the possibility of ignition system failure. If the air intake, exhaust and ignition are normal, you can check the crankshaft pulley again. It is very possible to estimate the oil circuit problem. Test the oil pressure, pressure maintaining state and fuel injection pulse width of the fuel system. Really not, replace the oil pump assembly and carbon canister.

3, nozzle cleaning, throttle body cleaning.

4. Idle motor. 4S generally has equipment to detect motor idling. Generally, if there is no problem when the motor is started, the vibration will be very slight, and it will move up and down when the oil is supplied or loosened.