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poor performance and gas mileage but smooth idle - where is problem? 200 1986

My '86 240 is getting poor gas mileage (~12 mpg) and poor performance -- there are two small holes on the front pipe (from header to CAT) which I think contributes to the poor performance but what about the gas mileage? Recently replaced oxygen sensor (2 days ago) and checked AMM, everything seems to be working fine, but still sucking gas......... smooth idle - anybody have any suggestions?






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New poor performance and gas mileage but smooth idle - where is problem? [200][1986]
posted by  woofpack4  on Sun Dec 14 12:02 CST 2003 >


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