1990 Pontiac Grand Prix Repair Question

Topics covered: Sensor, Speedometer.
Mileage: 107,000 miles.

Asked on January 2, 2013

Pontiac Grand Prix Sensor Problem

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.

Asked by (pending member)

Replied on January 2, 2013

yes, try tapping on it while running and it may faulter. common failure

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided

Replied on January 2, 2013

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

Answered by tawarren
5 questions asked

Replied on January 2, 2013

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

roy

Answered by ASEMaster6371 (expert)
24,973 answers provided