help can't get my check engine light off?
I'm working on a 87 iroc with a 350 tpi. It runs pretty good but when its idling, it idles fast then slow. I can't keep the check engine light off to check the codes. The book says it could be a bad prom or not grounded well. I've checked the grounds that a can see easy. The computer #is 1227165, the prom could be an after market? Don't have the # on it tonight. Anyone got any Ideas?
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