I have cleaned my IACV, My throttle body, my EGR valve, and seafoamed my intake and motor. my car runs perfect and idles perfect when my a/c is off. But when I turn it on the idle fluctuates between 100rpm and 900rpm then it will stabalize, but then I open the throttle and then let it idle again it will fluctuate again but first it drop down to 100rpm and almost die. (It has died on me at stop lights before f***in gay)

I have basic bolt ons intake, exhaust, headers, and light weight pulleys. My crank pulley is also light weight I'm starting to think thats where my problem is; would a solid tune fix this by setting my idle differently when my A/C turns on. HAS ANYONE ELSE HAD THIS PROBLEM!!
its so annoying........

Thanks in advance

 

I'm pretty sure I already told you the answer to this in another thread, it's your IACV, you need to replace it, I've had the same problem.

 

ok thanks