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Re: 98 Grand Prix - Hard Starting and Higher Than Normal Fuel Consumption
Based on what I see I would rule out the fuel pump to include control circuits and concentrate on the FPR first and fuel injectors next. Try running a bottle of Chevron Techron with a full tank of gas or you may need to have it done professionally or even DIY in which we have a DIY tech procedure posted someplace here for cleaning the injectors. The FPR is tied into the front and rear fuel rails and helps control the return line or return of fuel back to the gas tank at the fuel pump pod.
When it does start up do you notice any black smoke out the exhaust tailpipes or does it run rough initially?
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