P1139 – Long Term Fuel Trim Add. Fuel B2 System Too Rich

P1139 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1139 Possible Causes

Faulty O2 Sensor,High fuel pressure,Faulty Mass Air Flow (MAF) Sensor,O2 Sensor harness is open or shorted,O2 Sensor circuit poor electrical connection

P1139 Description

Long Term Fuel Trim Add. Fuel B2 System Too Rich is the generic description for the P1139 code, but the manufacturer may have a different description. Currently we have no further information abouth the P1139 OBDII code.