hey yall
so i am having problems with this 04 grand prix. hopefully someone here can help
totally stock except a magnaflow cat.
the car hesitates bad at 1500rpm, any other RPM its fine. also when i romp on it sometimes the power surges. no check engine lights
sometimes the car will stall when first started. i dont know if this is related.
i tried all new plugs and wires. autolite plugs gapped at .50
i am leaning toward an electircal issue.
gonna try cleaning the throttle body and mass air flow first.
then replacing the MAP and IAT senors.
in addition the gas cap warning comes on sparatically
ANYBODY????
