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Yes I'm Jeff, what do you need to know? Somethings are confidential. Its up the the engineer if I can share it. I know they wont share engine cal info but I'll ask.

Oops... too late. SCT shared their engine cal info.

Would that apply to the SOHC? I can't find it here or on SRTforums if it does.

RoadRacer380, thanks for the advice on the IAC settings. It works much better than trying to use closed loop settings to modulate the IAC motor. I didn't have time to adjust my idle screw so I tried 40 in the IVF box and changed the cold and warm duty cycle setting accordingly. This worked well but had a slight fog horn sound going while it was warming up.

If you want to use closed loop idle with the 2-wire PWM solenoid, the following settings work well:

Idle Valve Frequency: 250
Cranking DC: 90
Min DC: 12
Closed DC: 0

Fast idle temp: 60
Slow idle temp: 160
Fast idle speed: 1200
Slow idle speed: 800

TPS threshold: *per your calibration
Idle activation adder: 200
Dashpot settle time: 250
Dashpot adder: 2

Deadband range: 30
Upper limit: 100
Lower limit: 50
Fast recovery: 7
Slow recovery: 15

Closure speed: 45
Startup delay: 250

With these setting it will modulate and hold any target rpm very nicely.

turbodudey, I had messed with mine until I had pretty much the exact settings you do. The exception was the Idle control closed loop setting page. I had to run tighter settings to get a good smooth idle without much oscillation. It was very hit and miss. I didn't know from day to day if the idle control would work or not. On a side note, I am not using the diode across the valve. Rodney at RS told me I didn't need it due to them putting a stronger transistor in the RS box than what is recommended by the MS manual. I know a little bit about electronics, but circuitry design is beyond me. With that said, I just took his word on it. Could that be the cause of my problem?

These are the settings I used and they worked well for a very stable idle around 1000 rpm on my car. I didn't mess with it any further because the stupid thing is still only running on three cylinders

turbodudey,
What "TPS threshold" should I start with (I used 30)? I plugged in and your setting and I found that the car idles at 1700rpms and slowly drops for about 30 sec till 500RPMs and stalls. What am I doing wrong?

Your threshold should be no more than 1 or 2 above your closed raw tps value or else it will cut in during cruise speeds. Could you post a picture or full log showing what is going on at the time the engine dies?

Most likely your closed raw tps value is higher than 30, so the IAC was effectively disabled. Like Snuff said, bump up your threshold to a couple points above your closed raw value. Depending on how "clean" your tps signal is, you man need a little bit more buffer, like 5-10 above, in order to keep any noise from kicking the IAC off when it shouldn't.

You were right! I was able to get it to work by setting the threshold to 42. Thanks for the suggestions guys. The only problem is it will sometimes stall if I step on the clutch and let it fall to idle after driving on the highway. I would post a data log, but I haven't yet tried to do so because I don't know how. I don't think its in my tune do to the fact it works fine on the warm up setting. I'm going to try setting the idle screw to 700RPMs with no IAC and then set the target RPM to 1000.

How might one do this