02gt here. lemme know when you figure it out lol. i sure havent. and everytime i ask someone they think im paranoid. happens more when i have the a/c running i think. you have any mods? all i have is plenum, 70mm throttle body, ram intake, steeda underdrive, and magnaflow x pipe and borla catback. no tune. changed iac twice. (advance autoparts, not oem part). possible battery issue with an optima yellow top, nothing conclusive. i was thinkin fuel pump was a possibility. injectors looked clean as a whistle.
does yours also seem to lose a bit of oomph when its warmed up?
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.