P0133 Code Help!

[brybart]

Jeff:

Thanks for your reply I understand what that code means and I replaced all the O2 sensors, cleared the code, did two drive cycles and the code returned. So I've eliminated the sensor from the equation. Any other thoughts?

[JFP in PA]

Originally Posted by brybart

Jeff:

Thanks for your reply I understand what that code means and I replaced all the O2 sensors, cleared the code, did two drive cycles and the code returned. So I've eliminated the sensor from the equation. Any other thoughts?

The new sensor could be bad, seen that more than once...…. Try moving the sensor to the other bank and see if the code follows.

[Qckslvr]

If it's any consolation I having the exact same problem.

I went to smog my car and the P0133 code was present (original 02s 104,000 miles). I cleared the code and it stayed off.

I installed headers, and test pipe shortly after passing. I put all brand new 02 sensors in the car. I also put cat simulators on the down stream 02s. I drove the car for 1,000 miles with no issue, then P01333 showed up on the scanner. Cleared it, drove it for 250 miles it came back. And these were Bosch plug and play sensors. I am waiting for my replacement to show up, but if this doesn't fix it a RoW tune will be put in the car.