2007 Subaru Check Engine Light Diagnosis

This 2007 Subaru Outback showed up with a few problems, one of them was a check engine light. The codes were P0137, P0037, and P2096. They all related to the secondary O2 sensor. In this video I show the procedure I went through in order to diagnose and repair these codes. All you need is a scanner and a DVOM. So, if you have a vehicle with a CEL, even if it’s not a Subaru, you can use the information in this video to help resolve the problem. Here are some other videos you might find helpful.

Here’s some useful links for you:

How O2 sensors work:

P0141 diagnosis video:

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