Need help with OBD1 O2 Sensor connections
I had some work done at a muffler shop and when they pulled my exhaust, the worker didn't disconnect the O2 sensor from the cat when he pulled it out. So, needless to say, the wires just came right out of the connector.
So now I need to figure out in what order the 4 wires go into this connector. This is the other end of the sensor that plugs into the car's end. There are 4 different color wires, and I guess I can try all the combos until the check engine light goes off, or go find another OBD1 car like mine, but if anyone has one off the car it would be easier. (I know it's a long shot but).
Edit: the car is a 94 GSR.

Why don't I take it back to the shop? The shop is kind of far, and I already took it back once because they didn't use the right kind of bolts/washers and the axle back came lose from the B-pipe. By the time they fixed I had to leave to work and didn't have time to have them fix the sensor, which may have been a blessing in disguise anyway. They had been recommended, but doesn't look like the employees are well trained. TIA for any help.
So now I need to figure out in what order the 4 wires go into this connector. This is the other end of the sensor that plugs into the car's end. There are 4 different color wires, and I guess I can try all the combos until the check engine light goes off, or go find another OBD1 car like mine, but if anyone has one off the car it would be easier. (I know it's a long shot but).
Edit: the car is a 94 GSR.

Why don't I take it back to the shop? The shop is kind of far, and I already took it back once because they didn't use the right kind of bolts/washers and the axle back came lose from the B-pipe. By the time they fixed I had to leave to work and didn't have time to have them fix the sensor, which may have been a blessing in disguise anyway. They had been recommended, but doesn't look like the employees are well trained. TIA for any help.
I have the same problem, but it's an easy fix. all you have to do just mutch the wires colores. there is four wires: 1) is green 2) is white, 3) is black and 4) is yellow . in some cars instead of yellow and black, both are black. so what you to be sure you connect the white and green properly. good luck
Okay use your picture as a reference... It's really simple, top left = GRN, top right = WHT, bottom left = BLK, and bottom right = BLK Polarity on the bottom two (blacks) shouldn't be an issue but if for some reason you get an oxygen sensor heater CEL then try swapping them...
Though I really don't think you'll need it you can see how they correspond to your engines wiring harness in this old diagram that I made 1000 years ago... As chafik11 said some use a different IGN 12VDC+ color line...
Though I really don't think you'll need it you can see how they correspond to your engines wiring harness in this old diagram that I made 1000 years ago... As chafik11 said some use a different IGN 12VDC+ color line...
Thread
Thread Starter
Forum
Replies
Last Post



