Ford P2278 OBD-II Trouble Code Definition: P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3 P2278 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3 Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. […]