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Home >> Alfa Romeo >> 2017 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P2AE2-00 To U148C-00 >> DTC Troubleshooting >> P2AE8-00-Intake Air O2 Sensor Negative Current Control Circuit High Bank 1 >> Possible Causes

Possible Causes

Possible Causes
INTAKE O2 SENSOR SIGNAL CIRCUIT SHORT TO BATTERY VOLTAGE
INTAKE O2 SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .