r32 idle problem

[1400r]

my r32 seems to not want to idle below 2,000 rpm originally my throttle body would stick when the idle pin was screwed in( too lower the idle below 2,000 rpm) I have replaced the throttle body and it no longer sticks but still sits at 2,000 rpm. I have gone through idle adjustment procedure and the ecu section seems to do nothing on my car and the valve control only lowers it to 1,500 rpm or so. I then cleaned the valve as suggested by others this seemed to work for a little while(sat at 1,200 rpm) as the car warmed up it rose very slowly back up to 2,000 rpm. Please help ps my car was auto to start with but idled at 2,000rpm in park then too.

[TimmyC]

check this thread http://www.skylinesaustralia.com/forums/sh...ead.php?t=69151

seems like this is fairly common, mine does it aswell. im gona fix the air regulator soon

im pretty sure the air regulator is my problem cos if i take it out for a drive and it really warms up the idle eventually falls down to about 1000. I haven't fiddled with my screw yet but i will once i get to to start idleing around 1000 to get it down to 750'ish.

[blind_elk]

When you replaced the throttle body, did you set the TPS? Check the TPS is sending the "throttle closed" signal to the ECU.

[1400r]

how do i check tps? I just lined up the painted lines shouldnt the ecu adjustment be doing something?

[blind_elk]

From memory, the resistance (ohms) between pins 1 & 2 (the top 2) should be 0 when the throttle is closed.

A quick check would be to remove the plug while the engine is running, and short the 2 pins on the loom side with a paperclip. If the revs suddenly drop, then you need to adjust the TPS.

[1400r]

took the iac valve out last night it was out of wack so I fixed it up and all is good now throttle is sticking again though gotta check that out thanks guys