Ford P1137 OBD-II Trouble Code Definition: P1137 Lack Of HO2S Switch Sensor Indicates Lean P1137 Ford OBD-II Trouble CodeDescription: Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1137 OBD Code Description Lack Of HO2S Switch Sensor Indicates Lean is one of the definitions for the P1137; however your vehicle’s manufacturer may have a […]