1993 Acura Integra 4 cyl Front Wheel Drive Automatic 250000 miles
I had a new motor recently put into my car, and everything ran fine until about a week after. Now when I put my car into drive it idle high then low then high and repeats. At first it didn't do it a lot. Now it does it every time I am in drive or even in reverse. How do I fix it and is it going to cost alot of money?
I have K& N air intake.