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Home >> Infiniti >> 2017 >> Q70L 3.7, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Basic Inspection) (VK56VD) (Except Hybrid) >> Basic Inspection >> Fuel Pressure >> Work Procedure >> High Fuel Pressure Check

High Fuel Pressure Check

NOTE:

Since the fuel pressure gauge kit cannot be connected, follow the method shown below to check high fuel pressure.

G-20 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

G-21 WITHOUT CONSULT

  1. Start engine.
  2. Check the voltage between ECM harness connector and ground.
    ECM Condition Voltage
    + -
    Connector Terminal Connector Terminal
    F110 31 F110 40 [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
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