4 runner high idle

[Sawyerc]

I have a 1990 4 runner, recently it will shoot the idle up to 2500-4000 rpm when I start it. The idle will eventually go down, but it still worries me that it is doing this in the first place. I was wondering if anyone knows what might be causing this to happen. Thanks for your time.
Sawyer

 

[KLF]

Take off the air intake tube that runs up from the airbox, spray some type of lubricant on the throttle plate pivot. WD-40 won't last very long, I usually use a Teflon-based lube like Tri-Flow.

Check the throttle cable linkage for binding too.