I tried to do the minimum air set for the IAC and it seems to not send the IAC all the way closed, when I go to set the idle even with the thorttle screw back all the way the truck won't drop below 850 rpm with the IAC unhooked. But I can see the IAC counts change while driving. The other question I have is about TPS voltage. When hook up the laptop to the truck turnerpro says that the TPS is at 0% even though it is not at the 0.58 volts. Does the PCM reset 0% thorttle, or does the Turnerpro think it is 0%?

I have the PCM with last 3 of 427 that uses the $0D mask.
Sorry sent this on my phone.