FAST IDLE
This has always, since I made the switch, idled fast. By fast, I mean around 1k RPM. There are no other driveability issues, other than the hesitation going WOT, but that really doesn't concern me.
Trying to set the idle, I was only able to get the TPS down to 1.11 volts. I drilled out the holes and there doesn't appear to be any more adjustment I can make. With the IAB unplugged, it will idle down as low as I want, but as soon as I plug in the IAC, it jumps back to 1k, regardless of where idle was set with it unplugged. Other than this, the idle is smooth and drops back down as expected. No hunting nor surging, just fast.
Thoughts? Not sure if it matters, but this is 93 t-bird, not mustang.