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Nissan Sentra B18 (2020-2025) Service Manual: Frp Control System

Component Inspection

Component Inspection

  1. CHECK HIGH PRESSURE FUEL PUMP-1

    1. Turn ignition switch OFF.

    2. Disconnect high pressure fuel pump harness connector.

    3. Check the resistance between high pressure fuel pump terminals as follows.

      High pressure fuel pump

      Condition

      Resistance

      +

      Terminal

      1

      2

      Temperature [°C (°F)]

      20 – 30 (68 – 86)

      0.46 – 0.51 Ω

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Replace high pressure fuel pump. Refer to Removal and Installation.

  2. CHECK HIGH PRESSURE FUEL PUMP-2

    With CONSULT

    1. Reconnect high pressure fuel pump harness connector.

    2. Start the engine.

    3. Check “FUEL PRES SEN” in “DATA MONITOR” of “ENGINE” with CONSULT.

      Monitor item

      Condition

      Indication

      FUEL PRES SEN V

      • Engine: After warming up

      • Selector lever: P or N position

      • 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

    Without CONSULT

    1. Start the engine.

    2. Check fuel rail pressure sensor signal voltage.

    +

    Condition

    Voltage

    (Approx.)

    Fuel rail pressure sensor

    Connector

    Terminal

    F101

    2

    Ground

    [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 the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Replace high pressure fuel pump. Refer to Removal and Installation.

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