how do i turn idle down in ae101

[vr4boy]

cant work out how to turn the idle down as it ildes at 1100rpm when warm, its a silvertop if that helps.

cheers

[Mr Revhead]

Is this anything to do with your conversion questions?

[vr4boy]

no, havnt got that far yet, still got silvertop in, just the high idle is annoying me.

[ATAl]

First is the iscv valve working properly - it's the one with an air hose running into the top of the intake manifold right near the head. This controls the idle speed normally.

It's possible the throttle bodies are adjusted incorrectly and are letting through more air than the iscv valve can compensate for. To adjust the throttle bodies remove the plenum, then there are small screws on the end face of each throttle body, screw these in to decrease idle. It's probably a good idea to screw them in the same amount each as otherwise you'll get the throttle bodies out of balance.

[fevil]

Had same problem (bt 20v). Cleaned iscv and that brought idle down to about 1000rpm ish. Replaced the thermostat and now idles at 900rpm hot.

[Flannelman]

Also found there is an adjustment screw on the Vane airflow senser. Clockwise is to lower RPM, Anti-clockwise is to raise RPM.

[Mr Revhead]

NO! That's to adjust the Afm. Don't $&#$% with it

[Flannelman]

OOPS!

[Bazda]

Yea I would not touch that, it changes the mixtures.

If you take the plenum off, there are 4 individual screws for each throttle body. Those adjust the idle.

yes you have to remove the plenum to do this!