[RocktimusPryme]

Originally Posted by yellow1098

I have been having a hanging idle issue when the car is warm after just normal driving. I have it set at 950 at idle and at about 95% of the time it bounces from about 1,200-1,350 in gear. When I put it in park or neutral it gets all the way up to 1,500-1,600.

The IAC at Idle still shows 0 even though the idle is super high. Also, at a light if I put it in neutral and wack the throttle it will drop it down from that 12-1300 to about 1,100. Not sure why that affects it.

I am running a Wilson 1,200 cfm throttle body and have checked the blades multiple times and they seem to all the way closed. I am also running a 1 inch spacer under the throttle is that has any effect.

If anyone has any suggestions or can point me in the right direction I would appreciate it.

I actually fought a similar issue for a while with my Terminator X. It was intermittent; sometimes I could feel the car fighting me while I tried to brake when I was cruising. After searching my butt off for vacuum leaks and whatnot I broke down and asked the guys as EFISystemspro

They said it was somewhat common if you have a normal variable PCV valve in your system. I did a short youtube video about it. Switched to the metered LS style PCV valve and have not had the problem anymore.

https://youtu.be/nTkxtj29BtY