Hi. I'm new to this forum and I have a question. I have a 97 Accord EX with a 2.2 V-Tech engine that only has 38,000 miles. It is stock and the maintenance is up to date. The car runs great and gets around 26 mpg around town. However I have a code, P0137 that has come up. Because there are no driveability issues the mechanic can't fix it. I was told it could be the upstream O2 sensor. Any thoughts out there? Thanks for your help.

 

This is a code for O2 sensor behind the catalytic converter, low voltage detected. This could mean a short or defective sensor. Not likely anything to do w/ the o2 sensor ahead of converter.

good luck