Hello all
Today I was replacing a broken vacuum line and decided to clean out my IAC "while I was in there." I pulled it out and looked at it. There was some varnish on it and some almost gritty looking oil deposits showed up as I spun the valve.

I turned the intake hole down and had the out side parallel to the ground. Holding it like this so the cleaner would drain out, I sprayed Carb Cleaner in it and this removed the deposits. I wiped off as much excess cleaner as I could and then set it up to dry for a few minutes before replacement.

When I put it back in, the car would start and immediately die. I fiddled with it some more while my wife nagged me about us being late for dinner with friends (which we weren't). I took it out and opened the valve. The car started and idled but it bounced between ~1K and 2K. Not normal. I disconnected the thinkg altogether and the car started and ran but the idle was very erratic. Finally, I got the idle fairly normal but the vehicle died once on the way to our friends house and several times on the way home. It required the two footed driving technique to keep it from dying. By the time I got home it had been idling low and when I put it in the carport it was idling around 1500 rpm but somewhat steady.

What gives? I'm going to go try to test it and possibly clean it some more but do these symptoms sound normal for a somewhat stuck IAC valve? What hacks me off is that it was idling fine before I fooled with it. It would dip just slightly as I put it into gear and it had died a few times when cold if immediately put under load but the idle was pretty steady, if slightly low. Now the idle's all over the place. I was cleaning it because I thought there were symptoms of it being a little slow to react. Now it almost seems as though it gets stuck.

I'm going to check it out again now. Anybody had this happen to them?

Thanks
Don
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92 745T 125K; 83 242Ti 188K - Brick on blocks for now.