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1988 Chevy Beretta Rough Idle
Does anybody know of a good place to start diagnosing a rough idle on a 1988 Chevy Beretta GT)? Has the 2.8L V6 engine. It also 'hunts" alot with the rpm varying from 450 rpm to as high as 1500 rpm when it surges. I have access to a OTC diagnostic tool, just don't know the best place to start looking. Any help would be appreciated.