Picked up a seized engine E70 (N55)

[BergA]

OK, I got the seat belt lights turned off by a friend of a friend with a scan tool. Nice.

Next up: P0444 "Evap. Purge Control Valve Circuit Open"
The purge valve is the small white and black thing attached to the intake manifold. It has two connectors going into it, each controlling a solenoid valve. I tested both valves and they actuated successfully when given 12V, and stopped air from moving through them.

The trouble code leads me to believe something is wrong electrically. Weirdly, my car has two identical connectors, one of which goes to the bottom purge valve. When I first received the car, the 2nd connector wasn't plugged into anything. It was just dangling. I actually labeled it "NC" or No Connection when I disassembled the car.

Can anyone with a 35i N55 engine check their purge valve and tell me what color wires are coming out of the bottom valve? It's either a black shielded cable, or two loose red/white wires. I'm very curious.

[ingenieur]

The attached schematic screenshot may help.

[BergA]

Originally Posted by ingenieur

The attached schematic screenshot may help.

Thanks, that's great. My car is 2011/05, so I did have the "tank vent shutoff valve" connected correctly (red wire & red/white wire)

On to other theories. My next thoughts are:
Broken vent hose out of the fuel tank?
Failed pressure sensor at charcoal canister?
Bad charcoal canister?

I remember specifically that I accidentally got water in the fuel vapor escape hose during pressure washing (leading into the charcoal canister) so that's the only lead I have at this point.