1G High idle after warmup

[Hahvetc]

When i start my car it idles @ 1100 (to warm up) then it drops down to 900-800 range. After i drive for 20-30 minutes the idle is @ 1100-2000. At a stop light it does not change. I can rev it up and it will just drop back to where it was. Sometimes it seems where i let the clutch put the idle stays there. Please Help it is getting very annoying.

 

[lasershark]

Your throttle cable could be a little too tight, might also have a small boost leak, or biss screw could need adjustment. This is where I would start at least.

 

[911gdsmboostin]

did you ever find the solution to this problem?? im having similar problems with a fwd auto just started out of no where it high enough it starts to build boost!?!?!?! I tried unplugging all the tb sensors and nothing but when I puled back on the throttle to close the butterfly it came down to around 1200 ?? any ideas?

When i start my car it idles @ 1100 (to warm up) then it drops down to 900-800 range. After i drive for 20-30 minutes the idle is @ 1100-2000. At a stop light it does not change. I can rev it up and it will just drop back to where it was. Sometimes it seems where i let the clutch put the idle stays there. Please Help it is getting very annoying.

 

[Agll30]

I had this same thing happen to me, turns out i had leak at the throttle body. Do a Boost Leak Test.