Nope, it's idling at 1100-1200 at startup, while driving it's idling at 2K. I'm about to put the stock TB back on.

 

if the butterfly on the tb is closed to far in the idle position the iac will try to make up for it and you will see a larger flash count on it. have you tried to set the minimum idle like i decribed? im looking at if my tb needs this done or not.
http://members.***.net/chipsbyal/page/idle/index.html

 

I've tried to do what you described several times with no luck. I found the right pins to do that in the OBD2 port and couldn't get it to work. I just got done putting my stock TB back on and it works fine. The TPS sensor is set in the stock postion and reading .74 volts, and the IAC postion @ idle is reading 39 steps, while the learned IAC postion is at 32 steps. So from that I'm thinking my thinking was wrong and this mod you sent me the link to might be the solution. I mean those two simple mods that are reversable if needed could be the answer. His method and reasoning make sense. I think I might try it and just use some epoxy to seal the main ports instead of speading all that time to make a piece to block those. It took me about 15 mins to switch out the TB and $3.82 for a TB gasket, so I think it's worth it to try it.

I emailed that guy and asked him some questions about this and if he though my problem was this, so I'll wait to do anything until I hear back from him.

 

Well I've talked to the guy that did those mods to his TB and he's telling me that that is most likely the solution to my idle problem. So I'm going to go down to ACE and see if I can find some thin walled tubing I can slide into the IAC port coming out the back and into the IAC port in the intake. If I can find something that works, then I'll go ahead and drill the hole it needs and see what happens. At the most I have to fill up the hole I drilled, no big deal ya know. But I'll let you know what happens.

 

Ok, I'm done messing with this thing, it's going on ebay. I tried his fix and that didn't work either, so it's gone and I'll look at the stock bored 52mm on ebay, those shouldn't have this problem I would think.

 

im wondering if thats why my back cylinders are rich. so did you try a tube?

 

Yeah, I drilled the hole, 5/32 because that was the closest I had without being to big. I found some really thin walled brass tubing, 1/2" ID and flaired out one end so it had about 3/16 flat lip on one end. The hole in the TB was smaller than the one in the intake so I did that to seal it up so the idle air would get where it needed to go. Then the unflaired end went into the TB, nice tight fit, but enough wiggle room to get it out if I need to, the flair went right down to the TB, and then the gasket would seal everything up. But it didn't work, you could tell where the flair was sealed up on the gasket. My IAC count was 1, learned IAC count was 34 with that config., still idleing at 1200 RPMs. So the stock on it back on this one is going up on ebay, I'm tried of messing with it! But since my stock one has been on and off so much, and cleaned pretty good, it's idleing way better than before. Not irradic at all, it stays at 775-825 RPM's now, where before it would go up to above 900 and sometimes almost stumble. So I'll stay with what works for now.