kb9mnm
12/12/2007 4:12:52 AM
I have a 92 with the 2.2. I have been reading alot of posts about this issue and am getting alot of different answers. My problem is this: WHen I bought the car it ran fine, however it was sluggish. Then, on occasion, it would run rough. I would "goose" it and it would clear up. When it would start running rough, at around 50mph, I could feel it surging. Anyway, then it would run fine for a few days then start doing it again. Now it does it all the time, no matter what. Once it gets going, it runs fine, but idle is horrible. I just changed the plugs, they were the original ones (92,000 mi) and cleaned the IAC valve, which was all gummed up. No Check Engine Light yet, and I have not taken it to see if there are any codes. I dont want to start throwing parts at it, they aint cheap(for my wallet anyway
). Any good guesses and places to start? Thanks very much!
kb9mnm
12/12/2007 4:21:59 AM
Could it be the O2 sensor? At one point, I could smell alot of gas whille it was trying to idle. However, I havent smelled any since that day.
kb9mnm
12/16/2007 1:59:38 PM
Update: went outside to see what I could make of this. Sprayed some carb cleaner into the intake tube. No noticable difference other than once in a while it would "catch" and seem to fire on all 4 cylinders then go back to running rough. Alot of black soot coming out of the tail pipe. So that tells me it's running rich. It runs this way from a cold start.
