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DOES THE ECM HAVING PROBLEMS CAUSE THE TACH AND ...
1990 Pontiac Grand Prix
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.
Wednesday, January 2nd, 2013 AT 1:22 AM
Yes, try tapping on it while running and it may faulter. Common failure
Wednesday, January 2nd, 2013 AT 1:23 AM
Thank you. We have changed so many things trying to find problem. The only thing we have not changed is the map sensor.
Wednesday, January 2nd, 2013 AT 1:33 AM
Do not get a used one the new ones are about 100 bucks
Wednesday, January 2nd, 2013 AT 1:34 AM
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