2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 121
Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 3.
3.REPLACE EVT CONTROL MAGNET RETARDER
1. Replace malfunctioning EVT control magnet retarder.
2. Perform See: Engine, Cooling and Exhaust/Engine/Timing Components/Variable Valve Timing/Testing and Inspection/Special Repair
Requirement.
- INSPECTION END
4.CHECK EVT CONTROL POSITION SENSOR
See: P Code Charts/P1078.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace malfunctioning EVT control position sensor.
5.CHECK CRANKSHAFT POSITION SENSOR
See: P Code Charts/P0335.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace crankshaft position sensor.
6.CHECK CAMSHAFT POSITION SENSOR
See: P Code Charts/P0340.
Is the inspection result normal?
YES - GO TO 7.
NO - Replace malfunctioning camshaft position sensor.
7.CHECK CAMSHAFT (EXH)
Check the following.
- Accumulation of debris to the signal plate of camshaft rear end
- Chipping signal plate of camshaft rear end
Is the inspection result normal?
YES - GO TO 8.
NO - Remove debris and clean the signal plate of camshaft rear end or replace camshaft.
8.CHECK TIMING CHAIN INSTALLATION
Check service records for any recent repairs that may cause timing chain misaligned.
Are there any service records that may cause timing chain misaligned?
YES - Check timing chain installation. See: Engine, Cooling and Exhaust/Engine/Timing Components/Timing Chain/Service and
Repair/Removal and Installation.
NO - GO TO 9.
9.REPLACE EVT CONTROL PULLEY ASSEMBLY
1. Replace exhaust valve timing control pulley assembly and EVT control magnet retarder. See: Engine, Cooling and Exhaust/Engine/Timing
Components/Timing Cover/Service and Repair and See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push
Rods/Camshaft/Service and Repair/Removal and Installation.
2. Perform See: Engine, Cooling and Exhaust/Engine/Timing Components/Variable Valve Timing/Testing and Inspection/Special Repair
Requirement.
- INSPECTION END
10.CHECK INTERMITTENT INCIDENT
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble
Diagnosis For Intermittent Incident/Description.
- INSPECTION END
Component Inspection
1.CHECK EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
1. Turn ignition switch OFF.
2. Disconnect exhaust valve timing control magnet retarder harness connector.
