Teg Tip: Idle Air Control Valve (IACV) Removal/Cleaning Procedures...

hey, what is that allen screw on the IACV for?

im pretty sure when you loosen it enough you can pull out the entire things from the other side…

Excellent write up.

any one know what its for?

intermittent low idle

I have a 92 teg ls 1.8. The problem I am having is an intermittent low idle.

cold start= 1150rpms until warmed up[SIZE=“6”][/SIZE]
warmed up= 750 rpms until idle issue
idle issue drop= 450rpms

The idle will drop to app. 450 rpm’s and after a few seconds it readjusts itself back to the 750 only so that it can drop to 450 again. I see no write ups on this particular idle issue. everyone has to high or to high with hunting. Can the IACV be responsible for intermittent low idle??? I am racking my brain here. Any help would be greatly appreciated.

Yes

Later,
BR

if carb cleaner / simple green is used (in that order), do you rinse with water and let dry or do you just let the carb cleaner & simple green dry on its own after compressed air goes through it?

Compressed air should dry it out enough to install as soon as you’re done cleaning it.

Later,
BR

anyone have updated pics…you cant see the pics

Bump

Pics are updated, they are under the “attachments” section near the bottom.:up: