Originally Posted by FordMan77
Yep, rattle is good. Does it have both o-rings in place still?
If you haven't done so already, with the car running in Park, spray carb cleaner around all vacuum fittings, the edge of the LIM/UIM, around the TB and any other places that vacuum could leak and see if you get any spots that make the car run differently. If so, then that'* a leak.
From your list it sounds like you have the rest under control. Hopefully one of these tests will show the issue. Good Luck
The PCV actually had NO O-rings when I removed it...
Which brings me to my next question:
I only had the MAF low voltage code at first. I unplugged MAF and car still stalled out at a red light. So I ruled out MAF.
I then started poking around, which led to my coil pack discovery and such.
BUT, could I have damaged something when I removed the PCV and rattled it?
Maybe I didn't put it back in right, or the o-rings are an essentail part of the puzzle??
BECAUSE I didnt have the misfire till I removed and put back the PCV/replaced the MAP.
I've also sprayed carb cleaner with engine running at all the vaccuum lines on top of engine and got no signs of leaks there. That'* why I'm scared the leak is either at a bigger place(EGR tube maybe?) or it'* a more serious problem.
Dan--You say possibly bad ICM? How would one know if that'* my culprit other than switching it out with a new one?