ok when im driving around and im about to come near a stop or whatever i put it into neutral and the rpms "should" goto like 700-1000 or w/e right? instead it revs up to 3000 how do i fix this? kinda like a sticky idle
really annoying
i was told it could be iacv or throttle body?
if anyone knows a fix let me know thanks

 

my car used to do that too. there's a valve right under the throttle body, i think it's called the FITV or fast idle thermo valve, take off the intake and inside the throttle body on the left, there are 2 ports. put your finger over the bottom one, and if it idles normally when its covered then it's the FITV. i took mine apart and put it back together and it was fine.

 

so take off the intake cover the hole drive around see if it does it anymore? it only happens when i drive the car and put it into neutral

 

ah i'm sorry. i didnt realize it ONLY did it then. mine did it until it warmed up and then it still idled high. sorry bout that.

 

damnit lol
anyone else know?

 

i juss got finished with a jdm h22a swap into my 96 lude, lovin every minute of it, but when the engine warmed up i had an idle surge that kept jumpin from 700 rpms to 1400 rpms...i would turn on the AC and it would stop so i did some research and thought it was my IAC valve (idle air control) so i took that off and cleaned it with carb cleaner....it helped a little but it was still doin it. So my next step was to try the IAS (Idle air screw) its located right under the throttlebody on the passenger side i took a flathead and adjusted it clockwise and it brought my idle down to 900 rpms and never surged again...try it and let me know wus good....

 

i get my car back tommorrow ill see if it still does it
thanks