Yes, that's why it runs to the ECU - for idle speed control.

I'm guessing that the connection in the ECU is a pass-through with a tap that feeds a signal to the IAC stepper motor.

When I get some time to play with it, I'll jumper GR-#1 on C-39 to BW on C-40 and see if it works.

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The classy thing to do is re-wire it all to an on/off switch


The ON/OFF switch is already there and wired - it's on the dash where the little button says "A/C". <img src="/forums/images/graemlins/lol.gif" alt="" /> All I "think" I need to do is repair the now open circuit.

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum