Answer
Jul 13, 2023 - 11:19 AM
Hi there,
The code P0137 is triggered when the PCM detects that the signal from sensor 2 on Bank 1 was below a specific value for a certain amount of time. It may reoccur if there is a problem with the oxygen sensor circuit or an exhaust leak that allows oxygen to enter the exhaust stream. In rare instances, the 2nd oxygen sensor you have installed might have become defective that fast. Click this link for more information from our CarParts knowledge database (there is a video in the link for you to review as well). I hope this helps!
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