I know an engine misfire will set a check engine light that goes on and off over periods of time. Tim C and I made our own MIL eliminators, his has held up, but mine fried.
Just to be on the safe side I took it to the dealership were he works so we could pull the codes. It threw and O2 code, but there are also several other things that will throw the same code number. I cant remember what they are at the moment (I'm at work, my brain functions diffrently  ), but we checked them out and everything else checked out okay.
It use to do the same thing, on a few days, off a few days, now its on all the time. Mine also started happening on a real rainy day. I'm just to lazy to build me another, and not to be in such a hurry this time.
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64 1/2 "D" code Red Mustang Coupe.
Red Baron,
2000 Perf Red Mustang GT. 5spd. Stage 2 CNC heads with Large Valves, Comp Cams (270-274 dur .550 lift), Forged Crank, DRP pistons, Manly H-beams, Pro M 87 mm Mass Air, 24lb Inj, 75mm TB, Plenum Spacer ,Long Tube Headers, Homemade H-pipe, 2 chamber Flows, 4:10's, Steeda Tri-Ax, LKW 70/30's, Eibach Drag Springs, Steeda SubFrames, Battle Boxes, Rear Girdle, Adj uppers, Alunimum Drshft, Southside Lift Bars.
Project Cars, 64 1/2 6cyl coupe, 1930 Model A Nostalgia Rod.
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