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Idle valve?
Posted: Fri Jun 01, 2012 1:27 pm
by jdm200sx
Looking for this chappie
Idle valve?
Posted: Fri Jun 01, 2012 1:45 pm
by rat
Top one or bottom one or the whole thing that bolts onto the intake.
Re: Idle valve?
Posted: Fri Jun 01, 2012 2:57 pm
by jdm200sx
Top 1. The one that look like a long nut with plug at the end. Dus it control engine idle? Or idle up when aircon switched on?
Re: Idle valve?
Posted: Fri Jun 01, 2012 3:23 pm
by NIZAN-R
think top one is acc valve
Re: Idle valve?
Posted: Fri Jun 01, 2012 3:35 pm
by jdm200sx
If I unplug it nuting happens with the idle even if I put on aircon. Cant get the idle down. It idles a 1500rpm.
Idle valve?
Posted: Fri Jun 01, 2012 5:16 pm
by rat
It is used for the ac.
Re: Idle valve?
Posted: Fri Jun 01, 2012 5:27 pm
by jdm200sx
Any suggestions how to get idle down? Its gettin quiet nerve recking hearing the engine idle so high
Idle valve?
Posted: Fri Jun 01, 2012 6:40 pm
by rat
Make sure you don't have a vacuum leak. One of the small pipes by the intake mani.
Re: Idle valve?
Posted: Fri Jun 01, 2012 7:11 pm
by jdm200sx
Goin to remove sensors and housing tomrw to clean them out. Wil check the vac pipes aswel. I thnk aftr 20 odd years they deserve to be replaced
Re: Idle valve?
Posted: Sun Jun 03, 2012 9:01 am
by Skylinefreak
Have you tried adjusting the idle at the screw?
Re: Idle valve?
Posted: Sun Jun 03, 2012 9:45 am
by jdm200sx
I have yes. With the screw fully closed its idling at 1500
Re: Idle valve?
Posted: Sun Jun 03, 2012 9:51 am
by Skylinefreak
Then I'd do what rat suggested, start looking for air leaks. Or maybe the "choke" / cold start auxiliary air valve is stuck open?
Re: Idle valve?
Posted: Sun Jun 03, 2012 10:10 am
by jdm200sx
I removed all the sensors yestrday and cleaned them out,replaced all the vac lines aswell. Idle stil high. Tried to feel around intake for any leaks. Could it be intake gasket?