DOES THE ECM HAVING PROBLEMS CAUSE THE TACH AND ...

1990 Pontiac Grand Prix

Tiny

Anonymous

January, 2, 2013 AT 1:22 AM

Does the ecm having problems cause the tach and speedometer to read twice as high and make the car rev and stall when warm and restarted.

FOUND 909 RELATED QUESTIONS

3 Answers

Tiny

ASEMaster6371

January, 2, 2013 AT 1:23 AM

Yes, try tapping on it while running and it may faulter. Common failure

Roy

Tiny

tawarren

January, 2, 2013 AT 1:33 AM

Thank you. We have changed so many things trying to find problem. The only thing we have not changed is the map sensor.

Tiny

ASEMaster6371

January, 2, 2013 AT 1:34 AM

Do not get a used one the new ones are about 100 bucks

roy

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