07-12-06, 02:03 AM
hi everybody, my 93 sts begins to run rough and basically miss,shake at idle and under load when it is hot about 45 minutes of driving. the rpm does not drop off however. the traction disabled/abs warning goes on as well when it starts running rough. could the abs/module/computer be causing this bad miss? the exhaust smells very rich when missing. so far i have changed,8 plugs,ign wires ,fuel filter,3 of the 4 coil packs,checked egr passages --look clean. the service engine lamp never lights up and there are no current pcm codes.i also cleaned the throttle body. i am starting to suspect the fuel pump. but the car runs fine when cool to warm, no miss,but a little power loss. i can hear the pump it seems a little noisy but not excessive. what do you guys think? maybe icm?