Question about 1991 Chevrolet Camaro

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91 Camaro RS 3.1 V-6. Won't start and stay running unless you open the throttle plate a little. It runs great other than that. The Service engine soon light is on, but my Monitor 4000 says no data. When the light is out, it runs great. Checked grounds, no issues there, unless there's one I haven't found. My daughters car and she's wantig to get rid of it.

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If it runs OK, and just won't idle the problem is probably your idle air control. Looking at the front of the motor it's just back and toward the the passenger side from where the air intake tube conects to the throttle body. Looks like a little round canister about 1 1/2 inches in diamater and 2 1/2 inches long with a plug in on the end. Usually held on by two small bolts, although some models thread into the side of the throttle body.

Posted on Feb 24, 2011


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Don :)

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