Hey folks. 2011 F-150 EB Screw keeps throwing up a soft P0144 High Volt error code every couple of days and I wanted to crawl under there and check the wiring harness and replace the sensor itself via process of elimination, but I'm having a hard time nailing down which sensor is being whiny. In the past, Bank 1 was P/S, Bank 2 was D/S, Sensor 1 was Pre-cat and Sensor 2 was Post-cat, so where the heck is Bank 1 Sensor 3? After an hour of RTF'ing and exhausting every combination of search terms, I'm at a loss.
Thanks.

 

Passenger side, last sensor you can find, it's after the cats.

 

Thanks GLC. I'll crawl under there tonight after work and track it down.