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'97 GTP Fuel Problem.....?

1997 Pontiac GTP. Had upper and lower intake gaskets replaced 1 month ago. My mileage has gone down to 6 to 11 mpg. I don't smell a gas leak.( How do I tell if it is a fuel injector leaking. ) When I'm at a stop it seems to go thru the gas. I can watch the mileage drop on the DIC.....

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  • 1 decade ago
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    WOW 6-11 mpg....I was getting that on my 93 cutlass supreme...it turns out if was a fuel system problem...MAP sensor, Oxygen sensor, and other things....my guess is fuel system

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