I have a rebuilt 22re with about 15,000 on it and this idling problem has just been getting increasingly worse. I have the idle speed cranked all the way down and it still idles around 1300-1700 rpm depending on the temperature. Also, I have been getting pretty bad mileage (15mpg) with stock everything and 31's. I have read many threads and nobody seems to have quite the same problem as me. I don't know if its dirty vacuum lines, bad tps, MAF, or whatever, but does anybody have any suggestions? Thanks guys.

 

I have this same problem.

Any help would be fantastic.

 

deffinately sounds like the iacv. search for some into on it