The engine of Feng Jun No.5 was severely shaken after receiving oil. Clean the fuel injector, throttle, oil pump and gasoline filter.

Does the subject want to ask, "The engine jitter of Feng Jun 5 is serious after receiving fuel, but the problems are still unsolved after cleaning the fuel injector, throttle valve, oil pump, gasoline filter and other parts?" What are the reasons? Poor fuel quality and ignition system problems.

1, poor fuel quality: the quality of gasoline added is poor, and there are problems such as precipitation and impurities, which will lead to unstable engine operation.

2. Ignition system problem: In addition to the spark plug, the ignition system also includes ignition coil, ignition coil cable and other components. Aging, damage or poor contact of these components will also lead to unstable engine operation.