| The o2 sensor from a 92 and 93 325i have the same part number on thepartsbin.com so they should be the same. The engine harness on my car is a 93 and the o2 sensor is a 92. The connection from the harness to the o2 sensor has been cutt off (not by me). I need to connect the o2 sensor to the harness but the colors on the sensor does not match the colors on the harness. Does anyone have any suggestions on how I can tell which wire connects to what. The 4 wires on the engine harness side green, brown, black, and yellow. On the o2 sensor there is a black, 2 whites, and a grey wire. Thanks | 
Linear Mode
