[QUOTE=articfriends;4738550 when you said THIS, was it diling at the 1500? " When I put my finger over the air tube feedhorn the engine dies very quickly but when I put my finger over the hole in the throttle blade it idles smooth and clean at 650 700 rpm.", If so, adjust throttle blades closed more or run a very short screw, tight fitting screw in that hole with red loctite.[/QUOTE]

Yes it was idling at 1500. I can put my finger on the hole in the throttle blade and it idles at 650 700 rpm on the gauge. Looking at the throttle blades they look completely closed to me. I cant find a vacuum leak but Im going to rent a vacuum gauge today. I dont expect it will be very helpful considering that its seems like it is getting to much air. By putting my finger over the hole tells me its getting to much air somewhere. Surely its not from that hole. Those holes were there from the factory and serve a purpose but carb cleaner around the intake and other port hold show no results of leaks. Im literally at a loss here. What is the best way to test the IAC that it is functioning?

Who tuned the ECM ? Smitty ?

I dont think your IAC is necesarrily bad, I think when its warm it has no control as its in its "minimum position" (unless its NOT cycling as far as it should). When its cold, it needs MORE air which is usually throttled by the IAC, so, when you rev it to 1500 cold, your Iac still can "throttle" the air enough to drop the idle back. As it warms up, the IAC counts go down, ie, minimum position. When you rev it, it hits a little higher timing table, idle takes off uncontrolled, your iacs probably in its minimum position and can no longer drop the idle back to "normal". Back throttle body stops on both primary and secondary a 1/4 or half turn back, see IF it changes things, if not, look for vacuum leaks (uncontrolled air feeding motor causing IAC to NOT have control) or plug that hole in the throttle blade with a very short, tight screw and red loctite

you can pull the IAC and watch it by cycling the key on and off to see if you're getting full range of motion

Yes Smitty tuned the ECM and did an amazing job. The engine fired off within 2 seconds and idles perfectly all day until i give it throttle. I believe the problem is vacuum related just finding it is the problem and figuring out why this wont go back to pre start condition. I will try and back off the throttle body stops to see if it helps. I feel like the hole in the blade is there for a reason and should be Id really like to find the culprit. I will try some carb cleaner around all the intake ports and hoses again as well. I like the idea of pulling the IAC off and checking for movement but have no way of telling if its actually all the way out or in. For a completely bone stock engine its giving me a little fit and I just want to float.

Im starting to think its not the IAC at all. Since it only works during idling and this occurs after a rev maybe a TPS? If the TPS doesnt think the throttle is all the way closed cant the RPM be increase by the ECM?

Bad IAC!!!!! Went to oriellys and bought part number# 2IAC2. Went back and took off the old one and it didnt move when I cycled the engine on and off. Put the new one on and it cycled. Started the engine and idles around 650 700 rpm revs and it idles back at 650 700. It surges once but may need to learn the IAC?

Bad IAC!!!!! Went to oriellys and bought part number# 2IAC2. Went back and took off the old one and it didnt move when I cycled the engine on and off. Put the new one on and it cycled. Started the engine and idles around 650 700 rpm revs and it idles back at 650 700. It surges once but may need to learn the IAC?

If the TPS doesn't think the throttle is all the way closed cant the RPM be increase by the ECM?

I'm going to say yes.
How many wires on TPS, and is it just closed/open/closed or variable ohms from idle to WOT? I'm not familiar with the EFI system but basing on my auto knowledge.
Can you post the wiring diagram showing wiring from TPS to ECM?

Based on the manual cable was using its a MEFI 1 and here is the wiring