P1087 Ford

Ford P1087 OBD-II Trouble Code Definition:

P1087 Exhaust Bank 4- Mixture Adaption Range 1 Lower Rich Limit Not Reached

P1087 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)