My CEL is on .. I get the following codes..
P0141 O2 Sensor Heater Circuit (Bank 1, Sensor 2)
P0135 O2 Sensor Heater Circuit (Bank 1, Sensor 1)
My pre-cat o2 sensor was replaced and I am still getting the same codes. I assumed that replacing the pre-cat sensor get rid of the sensor 1 code but it didn't.
So now my question is.. If one of the o2 sensors fails will that cause the ecu to give codes for both?
If not then I must have a wiring problem
P0141 O2 Sensor Heater Circuit (Bank 1, Sensor 2)
P0135 O2 Sensor Heater Circuit (Bank 1, Sensor 1)
My pre-cat o2 sensor was replaced and I am still getting the same codes. I assumed that replacing the pre-cat sensor get rid of the sensor 1 code but it didn't.
So now my question is.. If one of the o2 sensors fails will that cause the ecu to give codes for both?
If not then I must have a wiring problem