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obd code p0137

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Oct 17, 2009, 2:40 PM

Post #1 of 4 (2081 views)
obd code p0137 Sign In

i have a 2000 sierra and the engine light is on and the code is p0137: 02 sensor circuit low voltage ( bank 1 sensor 2). can you tell me where this is or how to replace it. thanks

Hammer Time
Ultimate Carjunky / Moderator
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Oct 17, 2009, 4:14 PM

Post #2 of 4 (2073 views)
Re: obd code p0137 Sign In

That is the O/2 sensor after the converter. It's likely a bad sensor but could also be a leak in the exhaust before the sensor introducing air into the converter.


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.


Oct 18, 2009, 6:27 AM

Post #3 of 4 (2067 views)
Re: obd code p0137 Sign In

thanks hammertime, will check it out.

Tom Greenleaf
Ultimate Carjunky / Moderator
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Oct 18, 2009, 8:30 AM

Post #4 of 4 (2061 views)
Re: obd code p0137 Sign In

To add: If in a rust belt the wires can fail at sensor! Can't really fix that if the pulled out - replacement is best and OE grade seems to last longer on the dang things!


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