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Does the ECM having problems cause the tach and.

Tiny
ANONYMOUS
  • MEMBER
  • 1990 PONTIAC GRAND PRIX
  • 107,000 MILES
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

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes, try tapping on it while running and it may faulter. Common failure

Roy
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Wednesday, January 2nd, 2013 AT 1:23 AM
Tiny
TAWARREN
  • MEMBER
  • 4 POSTS
Thank you. We have changed so many things trying to find problem. The only thing we have not changed is the map sensor.
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Wednesday, January 2nd, 2013 AT 1:33 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Do not get a used one the new ones are about 100 bucks

roy
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Wednesday, January 2nd, 2013 AT 1:34 AM

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