1228747 ECM $4f

[Turbogtu]

Silly question, did you happen to OHM the resistance of the IAC wires from the pigtail to the ECM.
Those pigtails are known to break internally. Tug on pigtail modestly and read the resistance.
One wire might be broke and would only open the IAC but not close it.
Worth a shot.
Pull on pigtail

[chris989]

I may have found one of my issues, There is a paramete/scalar IAC-%TPS for closed throttle. Winaldl says i am at .2% and the data in my bin was over 2%. When i changed the data to .2 and loaded the rpms drops instantly. I drove around a bit and it seamed to be much better. My idle in the RPM/coolant table is set for 650 but i was still idling around 700-725.

I can live with 700, I still would like to figure out what is over-riding my settings. I am in closed loop during these observations.

One other thing, my BLM where way high. When i built this motor it was capable of running the stock bin and all the cells almost dead on. Today, they were 140s-150s over 1400 rpm. I think my fuel pump is about ready to go?

Chris

[ony]

fuel filter may be getting dirty,i had a pump go out going down the road bml's went up in the red in tuner pro, it still run luckly and got back to the shop 6-8 lbs pressure.