I have the AIRRAM IM, BBTB and CAI installed. My idle keeps creeping up to around 1500rpms and each time I try to adjust it via the throttle screw it slows down to where it should be but readjusts to the problem rpm level. In addition, I now have a problem where after the car warms up the idle will "pulse" with a flux of around 500rpms. This is also the case while coasting, which actually causes the car to jerk slightly with the "pulsing."

I had a CEL for my O2 sensor, and replaced it with a Bosch sensor, but a CEL came up by the second time I fired up the car. I have not scanned it yet due to insane lack of time and the fact I'm pretty sure it is still an O2 code. Why I'd still be getting a code for this after replacing the O2 is also still a mystery to me.

I'm guessing my current idle problem may be related to my IAC? What are your thoughts?

 

Have you check for vacuum leaks?

 

Seriously? Get it scanned! Your car says there is something wrong. Take it to autozone and have them tell you what it is. you can't work on it until the code is gone.

 

My air ram leaked at first too ,check the gasket and make sure all the allen head bolts are tight, 4 of mine came loose.check all the nipple fittings too.

 

Like I said, I haven't had time. I have 3 jobs and go to school full time. The soonest I will get a chance is Tuesday. Also heading to a junk yard then to look for a couple random things. I will check for vacuum leaks. I bet that could be the culprit. Oh yeah, I payed more attention to the "pulse" today and it is about 250rpms, not 500rpms.