What is the diagnostic code for O2 sensor circuit slow response?
What is the diagnostic code for O2 sensor circuit slow response?
P0139 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit Slow Response (Bank 1, Sensor 2)”.
Why is Bank 1 O2 sensor so slow?
The O2 sensor for bank 1 sensor 2 should be replaced only after all other checks of the fuel and exhaust systems test okay. The slow response of an O2 sensor may be due to a sensor that is just getting old and over time may get contaminated with time with carbon and other contaminants that deteriorate the sensor over time.
Which is Bank 1 sensor monitors oxygen exiting the engine?
Bank 1 Sensor 1 is a sensor that is used by the computer (ECM) to monitor the amount of oxygen exiting the engine.
How to check signal from O2 sensor to PCM?
Verify the signal from the O2 sensor to the PCM as “seen” by back checking the O2 sensor connector, and if needed, back check the PCM’s signal wire as well. Check the harness of the sensor and make sure it is not scrapped, damaged or grounding anywhere. Also, make sure you wiggle test.
What does the O2 sensor circuit slow code mean?
P0133: OBD-II Trouble Code: O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) P0133 Trouble code definition. What the P0133 code means. Bank 1 Sensor 1 is a sensor that is used by the computer (ECM) to monitor the amount of oxygen exiting the engine.
What does Bank 1 O2 sensor 1 do?
All our repairs are backed by our 12-month / 12,000-mile warranty. Bank 1 Sensor 1 is a sensor that is used by the computer (ECM) to monitor the amount of oxygen exiting the engine. The ECM uses the signal from the O2 sensor to adjust the fuel and air ratio of the engine.
Why is my bank 1 oxygen sensor lagging?
If the sensor probe comes with white and chalky parts, this means it has been lagging between switching phases, and should be replaced. The easiest way to get rid of the Error Code P0133 is to reset the code and see if it comes back after a few drives. If the code indeed comes back, the problem is most likely in the front Bank 1 O2 sensor.
Why does my PCM respond slower than the oxygen sensor?
When the oxygen sensor switches at a speed that is slower than normal, it causes a slow response between the oxygen sensor and the power control module (PCM).
