P0139 popped up again... found another thread that was saying the rain caused it most of the time but I don't think thats the case for me. Im not sure what else to do at this point, it all started after I replaced the clutch but my o2 sensor harness didn't appear pinched and all the wires for that were in tact, just the neutral switch harness was cut, they weren't on the same harness either (2010 sti) they were separate so I'm going to just replace the sensor one more time and not use a $38 rockauto special and try a Bosch sensor.. wish me luck