Thanks John.
I cannot reverse the black wires. I just tried and the sizes are different so they cannot fit on each other's respective pole.
Connecting my positive lead to pole 1 and negative lead to pole 2 gives me 12V when the key is in position 0 or position 2. So it seems that it gets power 100% of the time. This is the smaller gauge black wire.
Connecting my positive lead to pole 1 and negative lead to pole 4 gives me 0V in position 0 and position 2. I haven't had anybody put the key in the start position and tried to measure voltage at this point. I will try and report back after work tomorrow.
When I put the key into position 2, I don't hear the fuel pump priming. I can hear (and feel) one relay click. It is the forward mint green one in this picture (not my fuse box but similar). I believe it is the fuel pump relay. I've swapped it with the other mint green and it is still just the forward mint green one that clicks.
