thanks you answering my question.now i would like to know do i need to replace the cold idle valve right away?will it damage my car at all?
reving up and down? on 1991 Acura Legend
No, it shouldn't. but it may cause surging when you are driving in a parking garage or something so be careful.
I have the same problem, finally ordered an IACV. I go 35-40 mph without putting my foot on the gas!