QUOTE(rwilner @ Apr 13 2012, 08:29 AM)
QUOTE(falconfp2001 @ Apr 13 2012, 11:18 AM)
It drives good and idles really good with the IAC setup I used.
Frank
What IAC setup did you use?
I tuned mine without an idle control valve and drivability is good when it's cold, but I think it would be better with an IAC.
I used the Wells AC320 (found on Ebay) got the pigtail from DIY and I made my own mount using the AAR inlet but you can use the billet adapter they have at DIY. If you use the regular Firmware, the steps go backwards 160 is closed and 0 is fully opened. If you upgrade to the Extra Firmware, it gives you a test mode for the Idle Stepper that will tell you how many steps till fully open and it reverses the steps, making it 160 fully open and 0 fully closed.
First you have to get the engine hot and then adjust your idle speed air valve on the TB to match what you want.Then you have to let it cool completely down before calibrating. You have to make sure your starting position is the fully open in Idle Control, then Set the IAC on always move. Then you have 4 temp settings for crank position. After cranking it will close to the current temp position and constantly decrease the opening until fully closed.
It gives you 10 definable temp settings for the IAC steps. I used
-40
0
40
80
100
150
200
250
300
350
as my temps. The stepper is constantly closing on a curve from each temp step to the next.
You have to start up the engine and then adjust these IAC steps live while the engine warms up until it is at its highest. By the time it is fully closed you should have the always idle speed you want. I did this twice to make sure and it is fully closed by 250 while idling. It went from step 75 to step 10. It will not be the same if you do not set it up the same.
The only problem I had at first was the seal on the pintle. It has to be a good tight seal so I had to rethink this install. I came up with taking a vacuum boot and using it as a cupped o-ring instead to seal the pintle. It looks clean but it was a hassle to make.
The idle speed is much more stable now but I can't wait until I get EDIS installed. On your system it would be perfect idle at all times.