I've been stumped with this connector on my harness. It appears to be an engine to chassis connector (AC Delco #PT2389) with provisions for ignition, gauges, and AC, CC control connections, etc. I've been all over the inter webs with no success. If anyone recognizes it and can provide a pin-out, I'd be grateful.
Doesn't this look FUN?! I performed the pin-out on the ECM in an effort to vet the mystery connector. I have all wires identified except one that goes into the harness, not the ECM. It has 3 wires and terminates near the crank pulley with no sensors nearby.
Not terribly concerned since all sensors seemed to be accounted for...