Doing some trans work and tore the wiring that comes off of the wiring harness going down towards the transmission... The actual segment was the short pigtail that plugs into the downstream o2 sensor (how I wish it was the o2 sensor wiring itself!) Anyhow, that female plug and the 4 wires were torn off and I cannot for the life of me distinguish what the 4 wire colors are??!! They all look black and I have no idea which one is which to connect back to the female plug. Does anyone have a diagram or idea on which wire is which? I was about to hook it up but then decided I was not sure which was which.