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

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

Possible 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)
Lincoln Vehicle:Lincoln Mark LT,Lincoln MKS,Lincoln MKX,Lincoln MKZ,Lincoln Navigator,Lincoln Navigator L,Lincoln Town Car,Lincoln Zephyr,
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