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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (2.9L Pcm 1 - DTCS P3406-00 To U143B-00) >> DTC Troubleshooting >> P3499-00-Cylinder 2 Deactivation Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
INSUFFICIENT DEACTIVATION OIL PRESSURE ACTING ON THE LIFTERS
OIL PASSAGES RESTRICTED
FAULTY LIFTERS FOR CYLINDER 2
INTAKE OR EXHAUST MDS SOLENOID

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

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