LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2023 >> Sentra SR >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component/Circuit Diagnosis >> Fuel Rail Pressure Sensor >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

  1. CHECK FUEL RAIL PRESSURE (FRP) SENSOR 
    1. SYMBOL With CONSULT:
      1. Turn ignition switch OFF.
      2. Reconnect harness connector disconnected.
      3. Start engine and warm it up to normal operating temperature.
      4. Select "FUEL PRES SEN V" in "DATA MONITOR" mode of "ENGINE" using CONSULT and check the indication under the following condition.
        Monitor item Condition Indication
        FUEL PRES SEN V
        • Engine: After warming up
        • Selector lever: P or N position (CVT models), Neutral position (M/T models)
        • A/C switch: OFF
        • No load
        Engine speed: Idle 0.820 - 1.140 V
        Revving engine from idle to 4, 000 RPM quickly 0.820 - 2.900 V
    2. SYMBOL Without CONSULT
      1. Turn ignition switch OFF.
      2. Reconnect harness connector disconnected.
      3. Start engine and warm it up to normal operating temperature.
      4. Check FRP sensor signal voltage.
        ECM Condition Voltage
        Connector + -
        Terminal
        F24 44 45 [Engine is running]
        • Engine warm-up condition
        • Engine speed: Idle
        0.82 - 1.14 V
        [Engine is running]
        • Engine warm-up condition
        • Revving engine from idle to 4, 000 RPM quickly
        0.82 - 2.9 V

    Is inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Replace FRP sensor. Refer to Exploded View .