1992 Z28 Camaro

1992 CHEVROLET CAMARO
53,000 MILES • V8 • 2WD • AUTOMATIC
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CHRIS1
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I have a 1992 Z28 Camaro that when being driven has the "Service Engine" light illluminate intermettently. Whe the light comes one the engine runs roughly and stalls if I try to let it idle. Also, when the "Service Engine" light comes on the speedometer stops working as well. When the light goes out the the engine runs smoothly and the speedometer works again. Any suggestions...?

No service was completed recently, no vibrations, odd smells, or fluid leaks. When the "Service Engine" light is off the car runs great.
Apr 9, 2011 at 5:55 PM
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RASMATAZ
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https://www.2carpros.com/articles/service-engine-soon-or-check-engine-light-on-or-flashing

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
Apr 9, 2011 at 5:58 PM