the upstream sensor, meaning the sensor before your catalytic converter...
the other sensor is the one after the catalytic converter...
but what was the actual obdII code, because in chrysler terms the don't mention bank one or bank 2; they mention upstream or downstream oxygen sensors
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did you clear the code and see if it returns?
did you check the wiring to the sensor? sometimes it can be as easily as that...
do you have a can of pb blaster ready in case it's seized to the exhaust pipe?
special socket?
anti-seize on the threads of the new o2 sensor?
Quote:
P0132—Upstream O2 Sensor Shorted To Voltage
P0133—Upstream O2 Sensor Slow Response
P0134—Upstream O2 Sensor Stays At Center
P0135—Upstream O2 Sensor Heater Failure
P0139—Downstream O2 Sensor Slow Response
P0138—Downstream O2 Sensor Shorted To Voltage
P0141—Downstream O2 Sensor Heater Failure
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