Ωhm

Welcome to the CC forum.

Groovy.

Don't. You got a 2.5L. We need to wait and see how these do. Watched your REM recording (youtube) made about a month ago. IDLE seems HIGH (≈1050rpms). Shows no CLOSED THROTTLE @ IDLE. Intake air temp (f°IA) also seems high @ around ≈245F°. ST shows ECU is adding fuel, but could be normal for HIGH IDLE.

My pleasure.

Found on YouTube.

_mj1988electricalmanual_1.pdf

Check your Fusible Links on the Starter Relay.

Love "The Queen of Soul"

When AC compressor clutch is engaged, make sure you have battery voltage (B+) on D2_6. If you can also check this using a testlight, looking for brightly lit. Same as if you put the testlight across the battery terminals.

Happy to help.

My impression was when the AC REQUEST cycled ON/OFF the AC clutch also cycled ON/OFF. Something is telling the ECU to turn the AC (relay) clutch ON. What? IDK now.

Back to this question. Connect AC Pressure Switch.

Swap all your cube relays around with each other. See if different problems show up.