Low Idle and almost stalling while idling

[r50loverPR]

Hey guys! 

 

Recently my pathfinder has started idling really low (around 400-500 rpm) and almost stalling out, particularly when I have the air conditioning on. It isn't a constant thing as it will randomly happen every once in a while but today it did it more than once and now I feel like I should fix it before it gets out of hand. I saw that a possible culprit could be the idle air control valve so I plan on cleaning it out with some throttle body cleaner to see if it improves. If that doesn't do anything any ideas on what else it could be? Thanks a bunch for any responses!

[Slartibartfast]

Does yours have the cable throttle, or the drive-by-wire? I'm assuming cable given the drive by wire doesn't have/need an idle valve. If it is drive-by-wire, be careful cleaning the throttle body--I've heard of them going into limp mode and refusing to come out again if the computer notices a sudden difference in air flow.

 

If it's the cable throttle, the IACV has a common issue where it leaks coolant internally, shorts itself out, and blows out the driver mosfet in the computer. Something to look into and check on while you're in there. Some info on that in this thread.