I drive an '04 Subaru Outback wagon with 166k+ miles on it. My check engine light came on recently (error code p0420), and I saw frayed wires hanging down from the underside of my car. The car is driving and sounding completely normal, other than the CEL and the hanging wire. Could this be a broken O2 sensor causing the CEL?
Here's a link to a picture of what I'm seeing
Thanks, in advance, for your help!