Idle Control Problem

[ZILR-34]

hi people

ive got a idle problem with my R32 GTS-T it seems that it will got from 1k to 1500rpm and stay there and not come down. i have seen a thread long time ago here how to fix it, i removed the ACC value and the back of the intake manifold and cleaned it out, and tried to adjust it but no good still. so i try to adjust the throttle Position sensor, i backed it off all the way to the left and still idleing at 1.5rpm.

could my acc value be f**ked? what do u guys think would be worng and how can i fix it without take it 2 a guy who will rip me off.

cheers

bill

[SteveL]

First thing you should do is check for air leaks...for example cracked vac hoses connected to the inlet manifold.

[ZILR-34]

i checked all the vac hoses them seem fine. any other ideas?

[33SOM]

I dont think it would be your acc valve. I dont have one and me car idles at 850rpm all day everyday. Including coldstarts,

[paulr33]

have u tried ecu reset?

[rob82]

Its your TPS. Its not registering closed throttle(to much voltage). Bring your temperature up to above 80deg - check your timing and then reset the position of the TPS so you get the disired idle. Their is two 8mm bolts on the TPS loosen them and twist the TPS the oppisite direction to what the throttle blade shaft moves.

[Bl4cK32]

As well as the AAC there is another idle controller on the rb20det. Its located under the throttle body and under the fuel rail from memory...its job is to lower the idle when the car warms up also...there was a thread in the maintenance section a while ago about it....

http://www.skylinesaustralia.com/forums/in...51&hl=regulator

Edited September 18, 2005 by Bl4cK32

[ZILR-34]

ive reset the ecu, still no good. the other idle controller under the fuel rail u were saying, has it got a blue plug next to it?