P1138 AUDI – Long Term Fuel Trim Add. Fuel B2 System Too Lean

P1138 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1138 AUDI Possible Causes

Intake air leak,Faulty O2 Sensor,Faulty Mass Air Flow (MAF) Sensor,O2 Sensor harness is open or shorted,O2 Sensor circuit poor electrical connection

P1138 AUDI Description

Long Term Fuel Trim Add. Fuel B2 System Too Lean is the generic description for the P1138 Audi code, but the manufacturer may have a different description. Currently we have no further information abouth the P1138 Audi OBDII code.