Emgrand ec7 neutral refueling speed indicator

1. It is recommended to check the high-voltage wires and spark plugs. 1. Whether the high voltage conductor leaks electricity. 2. Whether the spark plug leaks electricity (magnetic leakage) and whether the spark plug is ablated by electric shock. Whether the gap is widening.

Second, whether there is too much carbon accumulation in the throttle and injector (generally, it is cleaned once every 20,000 kilometers).

Third, the fuel quality problem (oil pump filter clogging phenomenon)

4. Your mileage has been changed, and the fuel filter has been replaced.

Four aspects of investigation, two or four must be done! One, three, post-processing according to the inspection results!

Question 1: It is suggested to go to the 4S shop to check whether there is instrument failure or speed sensor failure.