Hamman

my OS recently popped up a P0031 code and was told it’s the pre cat O2. I looked under the car following the cable but for the life of me cannot find the connector end! I’m assuming it’s in the engine bay somewhere. The wires go in through the body behind a black cover but just not sure where they exit at. Anyone know? I’ve got a new sensor ordered up as I need to do my emissions test soon. Thanks guys!