What is the reason for the fault light illuminating after the Wingle 7's stationary self-cleaning?

1 Answers
MacElliot
07/29/25 5:32pm
The reasons for the fault light illuminating after the Wingle 7's stationary self-cleaning are as follows: 1. Poor fuel quality: Causes incomplete fuel combustion leading to carbon deposits and engine idle knock. 2. Fuel pump failure: The engine sensor and command cause the engine to shut down simultaneously. 4. Throttle carbon deposits: Carbon deposits from fuel combustion cause the oxygen sensor to trigger a three-way catalytic converter fault, which can result in the vehicle's exhaust emissions failing to meet standards and polluting the atmosphere. 5. Mismatched fuel grade: Since the compression ratio of each car's engine varies, the fuel grade must match the engine's compression ratio to reduce engine knock and minimize incomplete fuel combustion. 6. Loose engine wiring connections: This may be a false alarm, and the system may return to normal after driving for a while.
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