Racing Idle

[white00GT]

Originally posted by Adam94GT
I think I may have another idea for an IAC "eliminator." What do you think of a gutted IAC but with a restrictor plate between the IAC and throttle body to keep the idle from racing?

Maybe that would be possible, hmmm?

I might consider replacing my TPS as well. Does anyone sell an adjustable TPS? Something with slots instead of round holes to allow more adjustment of the TPS than a factory replacement.

I'm not sure if the gutted IAC w/restictor would work either. When I was messing with mine I had my father starting the car with me working the throttle and my finger on the IAC.

It was too inconsistent, with me doing everything I could to keep the car running the vacum through the IAC was all over the place.

At idle it was sucking like a vacume, but when I would rev the car to keep it from cutting off the vacum would decrease (natuarly).

If I just pluged the hole; no go, the car would shut off almost as soon as I covered it, but if I just left it as a big gapping hole it wouldn't run either. Thats when I started to vary the size of the opening that I was allowing with my finger. I would have to constantly vary the size acording to RPM. Thats what I think that plunger inside of it does, is vary the amount of flow based on the demand. If that makes any sense.

About the TPS I remember seeing somewhere that somebody had a plate that when inbetween the TPS and the throttle body that allowed you to vary the voltage; I'll look to see if I can find that again and get back to you.

Stupid IAC.