What does engine code P0137 mean?
O2 Sensor Circuit Low Voltage
P0137 definition: O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) Issue Severity: MODERATE – Extended driving with this code may cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid emission system and catalytic converter damage.
How do you fix P0139?
What repairs can fix the P0139 code?
- The O2 sensor for bank 1 sensor 2 should be replaced only after all other checks of the fuel and exhaust systems test okay.
- Testing the fuel system and replacing a leaking injector.
- Replacing the catalyst in front of the sensor.
How do I fix P0133 code?
What repairs can fix the P0133 code?
- Usually a replacement of the oxygen sensor will fix the P0133 code.
- At times the sensor itself will not be causing the code P0133, so a technician must check for other faults such as vacuum leaks, a dirty mass air flow sensor, or leaks in the exhaust system.
Where is P0137 located?
Diagnostic trouble code (DTC) P0137 stands for “Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2).” This error code is triggered by your car’s primary computer—often referred to as the powertrain control module (PCM)—when it perceives a problem with the oxygen (O2) sensor.
What would cause low voltage on an O2 sensor?
A low voltage signal from the oxygen sensor indicates low oxygen content in the exhaust—a sign that the engine runs rich. The PCM responds by reducing the fuel going to the engine.
What causes P0139 code?
Diagnostic trouble code (DTC) P0139 stands for “O2 Sensor Circuit Slow Response (Bank 1, sensor 2).” It indicates that the powertrain control module (PCM) has detected a potential issue with the signal from the rear oxygen sensor on bank 1.
What does diagnostic code P0133 mean?
The code P0133 indicates your vehicle’s oxygen sensor is having a problem. This sensor monitors how much oxygen comes out of the engine and transmits this information to your vehicle’s computer.