Hi,
There is a throttle valve cable on this vehicle. It sounds like that may be causing it to stick. The cable will run to the throttle body.
Here is what I need you to do: Remove the top of the air filter box. See pic 1 below. Next, loosen the clamp where the air hose attaches to the throttle body.
Inspect the cable that goes to the throttle body. What I would suggest is to disconnect the cable to see if the idle speed goes down. If it does, that cable will likely need to be replaced.
I highlighted the parts below and have an arrow pointing to where the cable attaches.
Let me know what you find.
Joe
See pic below.
Image (Click to make bigger)
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Tuesday, February 22nd, 2022 AT 7:40 PM