The oxygen sensor reports live information about the engine's air/fuel mixture to the powertrain control module,(Computer). This information is used primarily to help calculate fuel delivery to the engine, which changes continuously while it is running. If the engine is running lean, the powertrain control module will sense this from the oxygen sensor's signal and increase the air/fuel mixture to the engine. Conversely, just the opposite occurs when the engine begins to run rich. On OBDII-equipped vehicles, the sensors are also used to help determine the efficiency of the catalytic converter. The powertrain control module does this by comparing the signal of the sensor located at the inlet of the catalytic converter with the signal of the sensor located at the outlet of the converter.
where is the secondary 02 sensor on a 2004 crv
exaust leaks , faster if its before the 02 sensor
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
02 sensor
underneath the cam rod with the 02 sensor
02 sensor heater curcuit malfunction (bank 1 sensor1)---change front 02 sensor if need be.
You have a bad 02 sensor after the catalytic converter.
That would be the sensor after the catalytic converter.
That would be the sensor in the exhaust after the catalytic converter ( downstream )
That is the sensor in the catalytic converter.
you do have an ( 02 ) sensor on the exhaust system
where is the 02 censor located