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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM (5.6L) (3 OF 3))BASIC INSPECTIONFUEL PRESSUREWORK PROCEDUREHIGH FUEL PRESSURE CHECK
2019 Infiniti Q70 3.7 Luxe, AWD

High Fuel Pressure Check

2019 Infiniti Q70 3.7 Luxe, AWDSECTION High Fuel Pressure Check
WARNING: This page is about a different variant/trim than selected.
NOTE: Since the fuel pressure gauge kit cannot be connected, follow the method shown below to check high fuel pressure.

SYMBOL WITH CONSULT

  1. Start engine.
  2. Check "FUEL PRES SEN V" in "DATA MONITOR" mode with CONSULT.

    Monitor Item

    Condition

    Values/Status

    FUEL PRES SEN V

    Idle

    820 - 1, 220 mV

    Revving engine from idle to 4, 000 RPM quickly

    820 - 3, 060 mV

SYMBOL WITHOUT CONSULT

  1. Start engine.
  2. Check the voltage between ECM harness connector and ground.

    ECM

    Condition

    Voltage

    Connector

    +

    -

    Terminal

    Terminal

    F116

    25

    13

    [Engine is running]

    • Warm-up condition
    • Idle speed

    0.82 - 1, 22 V

    [Engine is running]

    • Warm-up condition
    • Revving engine from idle to 4, 000 RPM quickly

    0.82 - 3, 06 V
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.