I like to get the engine up to operating temp and set my hot idle speed with the throttle body screw and the IAC shut down (as closed as possible). If you have the idle timing activated, shut it off for this so the only thing controlling the idle speed is the throttle body set screw. That way it's not having to use the bypassed air just to maintain your base idle speed, and you'll have full use of the IAC when it's needed, like a/c kicking on, cold start, etc. After you set that have the idle timing activated so the ECU can use timing to stabilize the idle speed. I usually allow at least 5-6 degrees +/- at idle. I also run about 30 degrees of base timing in the idle section, most of my builds are happier there.
As far getting full throttle if you can't adjust the cable to get it then you may have to change where the cable attaches on the throttle body or the pedal itself, to get more movement.
|