1994 Sidekick RPM Question

[fixkick]

Idle at start is 1200 then moves down to 750-800 hot.(Not sure how hot, or how to tell but needle is 1/3 to the right).

I have not examined the TB or IAC at all, I will test tonight.

sounds like the IAC works ok.  if it ramps down like that it is working, the IAC thermal air valve.
so try playing with the bleed screw? to see if it can get it to lock in and regulate (this ISC)


if the CEL lamp glows idle can fail, but  ive never seen code 24 do  that, ever.  pull the dome fuse, and put back reset the ECU errors in memory
then idle engine until hot. so code 24 can not set.
then see if headlamps + blower holds RPM  are steady near 800 hot.  if not screw i the bleed 1 turn see if the ISC wakes up,  of not CCW out the bleed 2 turns see if idle controls wake up.
cheers to you