2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 115
1. Start engine and rev engine up above 1,500 rpm.
2. Read the voltage signal between ECM harness connector terminals as per the following with an oscilloscope.
Is the inspection result normal?
YES - GO TO 10.
NO - GO TO 2.
2.CHECK EVT CONTROL MAGNET RETARDER
See: P Code Charts/P0014.
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.
