I checked and am getting the following diagnostic code: P0157 are these problems I can fix or should I take my vehicle to a mechanic?
Aug 9, 2015 at 6:07 AM
P0157 code?
2009 JEEP WRANGLER
SEADAD97
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CJ MEDEVAC
- ✓ASE Certified Mechanic
- 11,004 POSTS
OBD II code P0157 means O2 Sensor Circuit Low Voltage Bank 2, Sensor 2
This would be the O2 sensor downstream of the catalytic converter.
If the O2 sensor is not producing the millivolts it should the code is generated and you are alerted.
These are possibilities of what might cause the issue.
Engine might be running lean, a short somewhere in the oxygen sensor's circuit, low fuel pressure, exhaust leaks, and the most likely/ common possibility is a faulty O2 Sensor.
Keep us posted on how it's working out.
The Medic
This would be the O2 sensor downstream of the catalytic converter.
If the O2 sensor is not producing the millivolts it should the code is generated and you are alerted.
These are possibilities of what might cause the issue.
Engine might be running lean, a short somewhere in the oxygen sensor's circuit, low fuel pressure, exhaust leaks, and the most likely/ common possibility is a faulty O2 Sensor.
Keep us posted on how it's working out.
The Medic
Dec 18, 2020 at 12:19 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.