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Home >> Infiniti >> 2017 >> QX60 Base, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Basic Inspection) (Except Hybrid) >> Basic Inspection >> Fuel Pressure Check >> Work Procedure >> High Fuel Pressure Check
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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-20With CONSULT 

  1. Start engine.
  2. Check "FUEL PRES SEN V" in "Data Monitor" mode of "ENGINE".
    Monitor Item Condition Values/Status
    FUEL PRES SEN V
    • Engine: After warming up
    • Selector lever: P or N
    • Air conditioner switch: OFF
    • No load
    Idle 1.120 - 1.310 V
    2, 000 rpm 1.215 - 1.425 V

G-21Without CONSULT 

  1. Start engine.
  2. Check fuel rail pressure sensor voltage.
ECM Condition Voltage
Connector + -
Terminal
F78 53 83 [Engine is running]
  • Warm-up condition
  • Idle speed
1.12 - 1.31 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
1.22 - 1.42 V