[rwest]

Originally Posted by al lkosmal

While I prefer the simplicity of the hand throttle, an IAC will work very well, if calibrated properly. It is not like a huge vacuum leak unless it is wide open to its air intake/filter. consider it a controlled amount of air that gets introduced into the intake...and you are in control. The amount of air that it lets into the system is up to you and is based on the calibration that you apply. So, if it's open, it is most likely because your current calibration is telling it to be open. The intent is to have the IAC open a bit during cold starts, tapering off to closed (or very close to closed) as the engine warms. If , when you have it plumbed in you are at 94kpa.....it is very likely that the IAC is wide open, instead of partially or fully closed......it will introduce as much, or as little air as you want....and that, combined with a richer mix, tapering off as the engine warms will make it start/idle ....somewhat like a Toyota or any other car that uses an IAC for cold starts.. You're really trying to get it to emulate what you do with a hand throttle and the pedal.

Hi Al,

What box do I adjust to get a smaller opening?

Thanks,
Rutager