Idle Solenoids help please guys

steffsrees

Member +
Hi guys, just wondering, is the idle control solenoid the one with the screw on it? and how would i tell which one is the fast idle and which one is the boost control solenoid?, i have two identical i don't know which ones which.
Is the idle control valve vented from the manifold to outside air ? or isit vented into the inlet piping pre-butterfly?

Thanks in advance guys plenty of rep as always for you helpful lot :)
 

dac69er

Super Moderator
those two solenoids your talking about are to do with idle up control for the aircon, on your yaris 4efte conversion you can get rid of these valves as they dont really do alot, and if you have no aircon they do nothing.

the idle control valve is on the end of the inlet and has no adjustment. its controlled by a thermostatic control valve underneath the inlet that varies the amount of air injected by the icv depending on coolant temp.

hope that helps mate
 

Big_Daddy

Member +
If wanting to adjust the idle, the valve is on the inlet manifold, should have black cap on it, remove it and adjust with a flat screw driver.
 

kieran.s gt

Member +
idle screw f u need to adjust idle
idleadjust.jpg
 
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