Need help with 02 sensor
#1
Need help with 02 sensor
I have a 2000 Express 3500, 5.7 ltr V-8
It had been setting codes periodically , then clearing itself and then resuming normal operation. Then the check engine light began coming on more frequently. It was setting the following codes. P133, P134, P135 and P1133 . I replaced Sensor one, Bank one and now . Still setting codes and the condition is actually worse now. Any ideas where to go next? Chris
It had been setting codes periodically , then clearing itself and then resuming normal operation. Then the check engine light began coming on more frequently. It was setting the following codes. P133, P134, P135 and P1133 . I replaced Sensor one, Bank one and now . Still setting codes and the condition is actually worse now. Any ideas where to go next? Chris
#2
All those codes are issues with bank 1 sensor 1 o2 sensor. if that is the one you replaced, maybe its bad. You could swap it with one of the other sensors to see......or replace it under warranty.....
#3
Thank you.
Yes, I agree. Sensor 1 Bank 1... thanks. I have a code reader.Good idea. Seems unlikely to be bad out of the box but...I'll try that. Possible the part was returned and put back on the shelf. Thanks