P1086 Ford

Ford P1086 OBD-II Trouble Code Definition:

P1086 Exhaust Bank 4- Mixture Adaption Range 2 Lower Lean Limit Not Reached

P1086 Ford OBD-II Trouble CodeDescription:

Causes
– Faulty Oxygen Sensor
– Oxygen Sensor harness is open or shorted
– Oxygen Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)