Check engine light

Check engine light

Postby High & Dry [OP] » November 18th 2010, 5:56am

How do I reset the ECM to make a check engine light go out after making a repair?
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Re: Check engine light

Postby WoodButcher » November 18th 2010, 5:59am

Disconnect the battery.
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Re: Check engine light

Postby GaryZ » November 19th 2010, 3:17pm

The Gen 1 Astro is an 'ODB I' vehicle and disconnecting the battery for a few minutes should reset all Trouble Codes.
Codes on these models are read by counting the flashing 'Check Engine' light.

The Gen 2 is an 'OBD II' vehicle and a code reader is used to reset codes. Your local Autozone should do this for you.
I think codes up to p1000 are standardized by the Feds and the same on all vehicles 1996 and up.

BTW:
I decided to buy my own code reader (about $100) and have used it a lot. It's a good investment.
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Re: Check engine light

Postby unrreal » November 19th 2010, 5:13pm

if the light has not gone out on its own after the repair and a few miles of driving then probably you didn't fix the problem, what was the code? and what did you repair?
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Re: Check engine light

Postby High & Dry [OP] » November 23rd 2010, 4:49am

Had a crack in thr coil with spark leaking out everywhere. Replaced coil, engine runs fine, but light remain on. Only other possibility is that as it has got cold recently, my temp gauge seems to be low, around a quarter gauge. I dont have a reader, therefore I cant qoute a code.

Thanks
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