1994 Sidekick RPM Question

[fixkick]

Worked again last night.
The ISC is reading 19.6ohms.
I think that the TB Bleed screw is my problem.  There is no screw, looks like maybe JB Weld in there or something.  Not sure really what to do.
Currently, 1200-1300 cold and 800-900 hot.  Thinking I may have to replace the entire TB, any ideas?

the bleed missing is the proof of tampering and more.
if the ISC passes the hot wire test then , only the bleed needs to be addressed,  but only if 900rpm is a problem for you,.

when hot wiring any ISC do not get the polarity wrong. the coil inside has snubber DIODES  that blow up if hot wired backwards.
one pin is ground, on the connectors


unplug iSC
then ground the correct pin
https://fixkick.com/ECU/92-95MPI-eng-sch...e-huge.png

the black green wire is ground side B12
the blue black is  12vdc.A12

just ground the wire with green first.
then with 12vdc battery of some kind connect plus 12v to the blue pin , for one second, and see of ISC is alive. some are jammed.
some the rubber ring seat inside is a total wreck.