SolaraGuy.com

Hey guys, I recently had a decent sized exhaust leak fixed on my '99 SLEV6's flex pipe. It was causing me to get code P1135. The leak sounds fixed and the car runs great, but the light came back on after a few miles. This time I get 3 additional codes: P1130, P1133, and P0125.

This screams rear O2 sensor to me, but what are the odds of two unrelated problems- the leak and the sensor failure- happening at the same time? Can a leak cause a sensor to fail?

Is the wiring to the sensor damaged?

No, I don't think so. I checked all the voltages for the sensors and they all seem to be in range. Correct me if I'm wrong:

Just sent you info about this to your other post !! If this is a California Spec car there is a TSB from Toyota that would fix it pretty easily with no parts !! There is a potential wiring connection issue at the A/F Heater Relay that would cause all these codes. I have the TSB if you need it.