I have an '04 thats been starting hard, rough idle, and no accel pedal response until it warms up a little. Sometimes it will die as its chugging and missing. Smokes quit a bit to.
Runs fine after start up.

Could this be related to this problem with the FICM?

I tested it early this morning after reading this thread. With key on it was at 28 volts until the glow turned off, then up to 48 volts. When cranking the engine over it stayed at 48 volts. The temp outside was 12 deg., block was plugged in.

Is that voltage drop normal when the GP's cycle?