What is the P013B error code? What is the O2 Sensor Responding Slowly – Poor to Rich fault (Bank 1 Sensor 2)? How can you fix P013B error code? What are the causes of the P013B code fault?
What is the P013B Fault code? What does it signify?
The proper operation of an engine is dependent on oxygen sensors (O2). These sensors are located in the exhaust pipe and manifold. Its primary task is to determine the level of oxygen in the exhaust. The powertrain control module, or PCM, uses this information to adjust the air-fuel mixture. O2 sensors are just like other sensors and can eventually fail, causing problems.
A P013B fault code will be set if the PCM detects the downstream oxygen sensor (Sensor 2) taking longer than expected for the catalytic converter to switch from low voltage to high voltage. “Bank 1” refers to the engine bank that contains the engine’s number 1 cylinder.
The PCM communicates with oxygen sensors using electrical signals. These signals are dependent on the oxygen concentration of the exhaust. This data is used by the PCM to determine if the engine is running rich or lean. The voltage signal will decrease if there is more oxygen in the exhaust. This means that the vehicle is running in a lean mixture. The voltage signal will increase if there is less oxygen in the exhaust. This is a sign that the tool runs in a rich mix.
To determine how much fuel to send the engine, the PCM relies on data from the downstream oxygen sensor. To determine the efficiency of the catalytic convertor, it first uses the signal from a downstream sensor (after catalyst). If the PCM detects a delay in the signal from the downstream sensor to switch between a low and a high voltage, P013B will be activated.
Chevrolet (especially Trailblazer), GMC Ford, Dodge, Chrysler and Volkswagen are some of the vehicles that can be affected by the P013B fault codes.
Other fault codes, such as P013A or P013C, can also be set, including P014C, D, P014D and P014E.
What causes the P013B fault code?
Below are some reasons to set fault code P013B:
- – Defective oxygen sensor (Bank 1 Sensor 2)
- – Connector and wiring issues in the O2 sensor circuit
- – Defective catalyst converter
- – Leakage of the exhaust system
- – Defective PCM
What are the symptoms for the P013B Fault Code?
You may experience the following symptoms if your vehicle has a P013B Code:
- – Illumination and control of the check engine light
- – Low engine performance
- – Increased fuel use
- – Triggering other fault codes
How do I fix the P013B fault code?
All engine misfire codes, throttle sensor codes, mass air flow sensor codes, manifold pressure codes and throttle position sensor codes can be diagnosed and repaired. All kinds of codes can be hidden if the engine is not working properly.
- – Replacing an oxygen sensor that is not working (Bank 1 Sensor 2).
- Troubleshooting O2 sensor circuit
- Correct reattachment
- Repair of damaged or open cables
- – Replacing the fuse in the O2 sensor heater circuit
- – Replacing your PCM
- – Replacing your catalytic converter
