2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 526
YES - GO TO 16.
NO - Replace EVAP canister vent control valve.
16.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
See: P Code Charts/P0453.
Is the inspection result normal?
YES - GO TO 17.
NO - Replace EVAP control system pressure sensor.
17.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.
2. Check if water will drain from the EVAP canister (1).
2 : EVAP canister vent control valve
Does water drain from EVAP canister?
YES - GO TO 18.
NO - GO TO 20.
18.CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.
The weight should be less than 2.0 kg (4.0 lb).
Is the inspection result normal?
YES - GO TO 20.
NO - GO TO 19.
19.DETECT MALFUNCTIONING PART
Check the following.
- EVAP canister for damage
- EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
- Repair hose or replace EVAP canister.
20.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 EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
3. Install a vacuum pump to EVAP control system pressure sensor.
4. Turn ignition switch ON and check output voltage between ECM harness connector terminals under the following conditions.
