Now that you're talking about having a damaged connector, I note that VSS on pin 34 is coincidentally more or less directly across the connector from Ground on pin 17. Any damage or dirt, even at the back of the connector, a damaged wire even shorting to the metal casing, could be giving an intermittent problem, possibly even being a bit worse when the contacts get a bit warm during operation as opposed to be stone cold when the engine has been off or the connector has been off. Same goes for making sure the area and contact at nearby pin 15 used to sense A/C control is clean and in perfect condition, as that pin all by itself causes idle to be raised by 200rpm and stay raised until the ECU sees the A/C compressor has engaged (which it never will in your car). It's not impossible to imagine damage or dirt at pin 15 allowing an intermittent short to stray voltage that could trick it into thinking that A/C is about to come on. Pin 15 is of course more or less directly across from pin 30 which senses being shifted in gear, so another coincidence to be wary of.

When cleaning edge connectors like that, use the best light you can to inspect the connector pins and deep back into the socket, use spray contact cleaner to clean deep into the socket to help flush debris out and be sure to follow with compressed air to blow out any remaining crap.

(oh my, I don't ever recall seeing a thread here nested so deep that my browser is one step short of displaying new replies in the index as a column of single words. People can use Threaded Expanded view to make it readable again).
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now