Need help please 92 lesabre
#2
What we generally do is to erase the code and see if it comes back.
If it does that confirms a definite fault. If it does not come back sometimes poor quality fuel could cause the engine to not respond when the system runs its test.
I wouldn't consider replacing the ECM until all other tests pass and no fault is found.
A faulty knock sensor can fail and send false signals to the ECM, make sure the connections at the sensor are good.
If it does that confirms a definite fault. If it does not come back sometimes poor quality fuel could cause the engine to not respond when the system runs its test.
I wouldn't consider replacing the ECM until all other tests pass and no fault is found.
A faulty knock sensor can fail and send false signals to the ECM, make sure the connections at the sensor are good.
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