Your Engine Control Module (ECM) uses the voltage levels provided by your O2 sensors to regulate your engine’s fuel injector pulse. If you are seeing code P0136, it means that the O2 sensor behind your catalytic converter on bank 1 is malfunctioning.Mar 29, 2022
How do I fix error P0136?
What repairs can fix the P0136 code?
- Replacing the O2 sensor for bank 1 sensor 2.
- Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
- Repairing exhaust leaks or a damaged catalyst.
How do you fix a low voltage O2 sensor?
Repair any exhaust leaks before the sensor to prevent excess oxygen getting into the exhaust stream causing the low voltage readings. Check the O2 sensor for oil or coolant contaminants that could foul the sensor. Repair any harness that is damaged properly to prevent erratic readings from the sensors.
What is 02 sensor circuit bank 1 sensor 2?
Bank 2 Sensor 1 is the first sensor closest to the engine. On Bank 2 means it is at the engine side with cylinders 2, 4, 6, 8, etc. Bank 2 Sensor 2 is the second sensor on the engine’s exhaust pipe, usually behind the catalytic converter. On Bank 2 means it is at the engine side with cylinders 2, 4, 6, 8, etc.
What causes low voltage in downstream O2 sensor?
Too low fuel pressure can cause the engine to run lean, causing the O2 sensor to read low voltage as described in step 3. In this case, the sensor is accurate, and the lean running condition needs to be fixed.
Where is the oxygen sensor bank 1 located?
Sensor 1 is the sensor closest to the engine. Sensor 2 is the downstream oxygen sensor. It is always going to be located after the catalytic converter.
What causes low voltage to a sensor?
The sensor sends the voltage signal back to the PCM. The low voltage signal means lean air fuel mixture, or too much oxygen and too little fuel.
What side is bank 1 on a Ford?
Bank 1 is the right (passenger) side. Sensor 1 is the O2 sensor before the catalytic converter.
Are bank 1 and bank 2 sensors the same?
In short, the bank tells which side the O2 is on (bank 1 or bank 2), while the sensor number tells if it is before the catalytic converter (sensor 1) or after the catalytic converted (sensor 2). Remember that bank 1 is determined by the side in which cylinder number 1 is located.