turbojimmy
Supporting Member
- Joined
- May 26, 2001
Originally posted by darkred87T
Very frustrating, there must be an obvious problem we are overlooking.
It's learned its way around the new settings and is idling crappy again. Wheeeee!
Jim
Originally posted by darkred87T
Very frustrating, there must be an obvious problem we are overlooking.
There are a variety of things that could cause a rough idle or miss, starting with a shorting plug or wire, to an intermittent injector or driver, bad ECM ground, all the way to possibly AC voltage leaking from the alternator. Usually when these problems start to surface, the ECM/PCM will attempt to compensate, which will tend to mask some problems, unless you know what to look for. If driveability diagnostics was so easy, everybody'd be doing it.using the screw to set IAC counts might possibly cause overlooking another problem. There is more than one way to skin a cat, some more efficient than others, some more thorough than others.
Originally posted by Rickracer
There are a variety of things that could cause a rough idle or miss, starting with a shorting plug or wire, to an intermittent injector or driver, bad ECM ground, all the way to possibly AC voltage leaking from the alternator. Usually when these problems start to surface, the ECM/PCM will attempt to compensate, which will tend to mask some problems, unless you know what to look for. If driveability diagnostics was so easy, everybody'd be doing it.
Originally posted by 85TurboTtype
Hey TurboDave, When you say between 10-30 on the readout and you say it depends on how radically modified the car is.... Would you say that it would be closer to 10 for cars that are not so modified and closer to 30 for cars that are? Also, does it matter if the car is warmed up or not? Should that make a difference if the car is warmed up or not? Please take a quick look at my signature and make an educated guess on what my IAC readout should be..... Thank you... Also the TPS should be between .40-.46 or so with that setting.?? Correct?
Thanks,
Matt
P.S.- Didnt mean to thread steal here, but I figured it was appropriate for that question to be asked here as I have the same exact problem.....
Originally posted by TurboDave
.46 is a little too close to the .46 maximum that trips out of idle.