2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 537
2. Remove fuel filler cap.
3. Wipe clean valve housing.
4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5. Check valve opening pressure and vacuum.
Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2, 2.22 - 2.90 psi)
Vacuum: -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm2, -0.87 to -0.48 psi)
Is the inspection result normal?
YES - INSPECTION END
NO - GO TO 2.
2.REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may illuminate.
- INSPECTION END
P0460
P0460 FUEL LEVEL SENSOR
Description
The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the "unified meter and A/C amp.". The "unified meter and A/C amp."
sends the fuel level sensor signal to the ECM through the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt- age changes depending on the
movement of the fuel mechanical float.
DTC Logic
DTC DETECTION LOGIC
NOTE:
- If DTC P0460 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
- If DTC P0460 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. See: P Code Charts/P0607.
When the vehicle is parked, the fuel level in the fuel tank is naturally stable. It means that output signal of the fuel level sensor does not change. If
ECM senses sloshing signal from the sensor, fuel level sensor malfunction is detected.
