Chevrolet lefeng throttle switch

Under normal circumstances, dirty throttle and idle motor will cause the car to turn off automatically at idle speed. And the spark plug doesn't ignite well. If the fault cannot be eliminated after cleaning and replacement. Check, eliminate, repair and replace the car according to the following reasons:

1, idle switch signal circuit reason.

2. Idle speed control valve and its circuit reasons.

3. Air flowmeter and its circuit reasons.

4. Fuel injector and its circuit reasons.

5. Coolant temperature sensor and its circuit reason.

6. The cause of the fuel pump and oil system.

7. The problem of gasoline quality will also lead to this kind of failure.