ZacTsi
10+ Year Contributor
- 47
- 0
- Apr 10, 2012
-
MoscowMills,
Missouri
Hey guys I've been avoiding posting this due to the MILLIONS of people with simple idle issues, so I've been working on this car, researching and reading forums everyday for hours. Im Stumped now
Heres the issue: My car will idle at 3,000 rpm. If I adjust the tps I can get it lower to where it is 1,500 rpm then surges to 2,000 and back down rapidly repeating. But I cannot drive like that because the TPS is so out of line the car will "buck" and thinks the throttle is all over the place. So heres what I've done to try and fix it:
I got a hard pipe intercooler kit from punishment racing w/greddy type s to eliminate the possibility of boost leak on stock i/c pipes.
I rebuilt the throttle body new shaft seals,biss,ect ect.
My iacv was bad I replaced that and tested the new one(new o-ring aswell).
I bought a brand new TPS.
I did a vaccum/full emissions delete/egr block off. bypassing the FIAV.
I replaced my o2 sensor which turned my cel off
And the only other mods to my car is 3in exhaust(downpipe/Cat back) and removed the boost solenoid restrictor.
I've been studing my haynes and researching for weeks now. Any help would be greatly appreciated!! After I rebuilt the throttle body and changed sensors the idle just got worse.
Heres the issue: My car will idle at 3,000 rpm. If I adjust the tps I can get it lower to where it is 1,500 rpm then surges to 2,000 and back down rapidly repeating. But I cannot drive like that because the TPS is so out of line the car will "buck" and thinks the throttle is all over the place. So heres what I've done to try and fix it:
I got a hard pipe intercooler kit from punishment racing w/greddy type s to eliminate the possibility of boost leak on stock i/c pipes.
I rebuilt the throttle body new shaft seals,biss,ect ect.
My iacv was bad I replaced that and tested the new one(new o-ring aswell).
I bought a brand new TPS.
I did a vaccum/full emissions delete/egr block off. bypassing the FIAV.
I replaced my o2 sensor which turned my cel off
And the only other mods to my car is 3in exhaust(downpipe/Cat back) and removed the boost solenoid restrictor.
I've been studing my haynes and researching for weeks now. Any help would be greatly appreciated!! After I rebuilt the throttle body and changed sensors the idle just got worse.