High idle speed

2005 NISSAN PATHFINDER

78,000 MILES • 6 CYL • 2WD • AUTOMATIC

DEJDEMI

MEMBER
1 POST

my mechanic accidentally cleaned the throttle control assembly, and the idle speed became erratic. After changing the throttle control assembly, the idle speed is 1,500 RPMs. i did a troubleshoot by removing the mass air flow sensor with the engine running but there was no change in the high idle. how can i reduce the idle speed?

May 12, 2010 at 11:09 AM

KASEKENNY

✓ASE Certified Mechanic
18,907 POSTS

Based on this I suspect you need to relearn the idle air volume, but we could still have an issue so let's start with these guides that will cause a high idle:

https://www.2carpros.com/articles/engine-idles-too-high

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Assuming you have no issues but just a high idle then we need to do the process below that will walk us through learning the idle again.

Let's run through all this info and we can figure out what the next steps are.

Thanks

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Feb 10, 2022 at 9:44 AM