substsitute O2 sensor??

[suprapoacher]

Is there another O2 sensor that threads in, instead of the bolt on stock one?
I need one that will read the same to the stock computer but needs to screw in. Any suggestions?

 

[Idealsupra]

mustang lx three wire ones work nicely...and they ar eonly like 30-40 bucks i believe PM mdcmotorsports and he can hook you up with a good price on them.

 

[suprapoacher]

But my O2 has 4 wires leading out of it.??

 

[JonoTurbo]

But my O2 has 4 wires leading out of it.??

Well, the stock o2 is 3 wire. Your's must have been replaced at some point. That just means it has two ground wires instead of one. You can replace the o2 with any o2 sensor that has the same # or more wires than it and it'll still work.(well as long as you hook it up correctly)

 

[suprapoacher]

Well, the stock o2 is 3 wire. Your's must have been replaced at some point. That just means it has two ground wires instead of one. You can replace the o2 with any o2 sensor that has the same # or more wires than it and it'll still work.(well as long as you hook it up correctly)

could mine be a heated O2 sensor??

 

[GrimJack]

Yes, but all Turbo O2 sensors are heated, that's why we have three wires.

The 4 wire ones are sensor, heater+, heater-, and OBDII diag IIRC.

 

[Bigzavs]

how would u hook up the 4-wire? only wondering cuz i have 10 or so from the tons of f-bodys ive worked on and done o2 simulators on

 

[johnathan1]

how do you know if your o2 sensor is any good?

 

[GrimJack]

If you can find a wiring pinout for the sensor, you might be able to leave the OBDII wire disconnected, hook up signal to the colored wire, and the two heater wires to the other two on your Supra harness. I imagine the sensor should still work, but I haven't tried it, so YMMV.

My usual method for testing the O2 sensor has been to replace it and see if my gas mileage improves. If it does, it was dead. If it doesn't, I keep the old one as a spare.

 

[suprafly]

4 wire sensors have an extra ground for the signal. 3 wire sensors use the body as a ground. Our sensors are heater, heater, and signal.