1992 Pontiac Grand Prix Sevice Engine Light

1992 PONTIAC GRAND PRIX
95,000 MILES • 3.1L • 6 CYL • AUTOMATIC
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TBALDACCI
  • MEMBER
  • 1 POST
When i either slow down or stop from 50+ mph my service engine light comes on. I have never heard of this happening and i have asked several people who say they haven't heard of this either
Nov 12, 2015 at 8:02 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,413 POSTS
The place to start is by reading and recording the diagnostic fault code. The Engine Computer detected a problem, set the fault code, and turned the Check Engine light on to tell you. That can happen under any of a variety of conditions. Coasting is just one of those conditions.
Nov 12, 2015 at 12:23 PM
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