Could a bad ICM cause a rough Idle, but not cause problems elsewhere? Cause I've eliminated most other options, and before I go invest in a new ICM I'd like opinions if it could f-up the idle only.
The car runs fine at any engine speed above 1300 rpm, in the 900 - 1250 rpm range there is a slight miss, and at idle it is rough, sometimes even stalling out, new plugs, swapped out the coils for a new one, no change... eliminated all other options than a bad ICM or possibly a screwed up PCM