Hi,
Unless my car's completely stopped, my idle is always staying at around 2000 rpm.
Originally I got G5X2 cam, 5.3 stage 2 heads, stock 78mm 98 MAF and it was fine until I went on vacation and my battery drained.
Recently, I added D1SC supercharger and 85mm MAF and it still the same issue.
Today, I just did idle relearn but after tuning the car off for at least 30 seconds and about to drive it 30 miles, it got the same high idle issue when rolling.
Any idea?
Thanks in advace!!!

-Mike
***BTW, my car is a 98 C5.

 

Sounds like there's too much in the throttle cracker. You say you've done the RAFIG process from a cold start? Or, did you just mean you started the car and let it idle for a while to learn the correct idle?

 

Thanks for your quick reply!
I did the learning process like:
- Pulled 2 PCM fuses.
- Let the car warmed up to 176 degress and let it run for at least 5 more minutes
After that, it still got same issue ...
-Mike

 

Try looking into the stickies for the RAFIG process under the idle tuning areas.

That might help clear up some of the problem.