P0157 code?

Tiny
SEADAD97
  • MEMBER
  • 2009 JEEP WRANGLER
  • 3.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 163,000 MILES
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?
Sunday, August 9th, 2015 AT 6:07 AM

1 Reply

Tiny
CJ MEDEVAC
  • 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
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Friday, December 18th, 2020 AT 12:19 PM

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