1993 WD21 PATHFINDER HIGH IDLE PROBLEMS

[DECALMAN]

So after searching this forum w I was not able to find a clear answer has to where are the parts nor pictures. So i decided to put this together.

 

I was getting between 1200 and 1500 rpm.

 

So I first checked the service manual to troubleshoot the problem. I found the IACV-AAC PLUG from the passenger side and checked with a voltmeter and i did have 10 ohms as the manual suggest.

 

 

I first shot it with some electronic cleaner and rpms went down to 1000 to 1200 rpm

 

 

I then proceeded to find the Idle adjuster screw

 

 

I unplugged the IACV-AAC PLUG and turned the screw clockwise about 3 times to get it down to 700 rpm since it was at about 900 to 1000 rpm with the cable unplugged.

 

 

Problem solved!

 

 

[Pav]

Was your truck always idling high...like when you first bought it?

 

I would clean the Throttle body and MAF first and then do an idle adjustment. When I cleaned mine the idle shot up so I also did the adjustment in the FSM.

 

Yeah the IACV is a pain to figure out from the service manual...but once you locate it you will never forget its spot.

[DECALMAN]

Yes it was high since i bought it. I will clean the throttle body and MAF later. Adjusting the screw was a quick easy fix until i have the time to the other stuff.

[Terranovation]

This is good stuff and should be in the how to section.