1994 Geo Prizm check engine light on code 12

1994 GEO PRIZM
200,000 MILES
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RSESCHE
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  • 3 POSTS
Car runs well but check engine light came on a few days ago. I tried pulling ECM fuses but code came right back. What should I do next and can I still drive the vehicle. Also it is impossible to make a donation on your site. It keeps telling me "donation must be at least 2 dollars" it does not matter what sum greater than or equal to 2 dollars I enter.
Sep 20, 2011 at 3:45 PM
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ASEMASTER6371
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code 12 is normal if the engine is off and the key on. if it is running, then it is a problem with the computer not seeing a rpm signal either from the crank sensor or distributor.
you need a shop to verify and confirm and give you a bid.

Roy
Sep 20, 2011 at 3:50 PM
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RSESCHE
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It is when running. Thanks for the quick response
Sep 20, 2011 at 7:57 PM
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ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
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you need to find out which part is at fault. it will not clear till the problem is fixed. find a shop familiar with OBD1 systems to check this out for you.

Roy
Sep 20, 2011 at 8:18 PM
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