2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 529
NG - GO TO 3.
3.CHECK DTC
Check DTC.
Which DTC is detected?
P0455 - Go to See: P Code Charts/P0455.
P0442 - Go to See: P Code Charts/P0442.
4.PERFORM DTC CONFIRMATION PROCEDURE
With GST
NOTE:
Be sure to read the explanation of Driving Pattern in See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Programming and Relearning/How to Set SRT Code before driving vehicle.
1. Start engine.
2. Drive vehicle according to Driving Pattern.
3. Stop vehicle.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON
6. Turn ignition switch OFF and wait at least 10 seconds.
7. Turn ignition switch ON.
8. Check 1st trip DTC.
Is 1st trip DTC detected?
YES-1 - P0455: Go to See: P Code Charts/P0455.
YES-2 - P0442: Go to See: P Code Charts/P0442.
YES-3 - P0441: Go to See: P Code Charts/P0441.
NO - INSPECTION END
Diagnosis Procedure
1.CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES - GO TO 2.
NO - Replace with genuine NISSAN fuel filler cap.
2.CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
Is the inspection result normal?
YES - GO TO 3.
NO - Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until ratcheting sound is heard.
3.CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 4.
4.CHECK FUEL TANK VACUUM RELIEF VALVE
See: P Code Charts/P0455.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace fuel filler cap with a genuine one.
5.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or disconnection. See: Powertrain
Management/Emission Control Systems/Evaporative Emissions System/Description and Operation/System Diagram.
Is the inspection result normal?
YES - GO TO 6.
NO - Repair or reconnect the hose.
6.CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
