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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 pumpConditionResistance
    +−
    Terminal
    12Temperature °C (°F)20 – 30 (68 – 86)0.46 - 0.51 Ω
Is the inspection result normal?
.
Replace high pressure fuel pump. Refer to Removal and Installation.
 
2.CHECK HIGH PRESSURE FUEL PUMP-2
WITH M.U.T.-III SE
  1. Reconnect high pressure fuel pump harness connector.
  2. Start the engine.
  3. Check “FUEL PRES SEN” in “DATA MONITOR” of “ENGINE” with M.U.T.-III SE.
    Data monitor itemConditionVoltage
    (Approx.)
    FUEL PRES SEN VEngine speed: idle0.820 - 1.160 V
    Engine speed: Revving engine from idle to 4,000 rpm0.820 – 2.900 V
 
WITHOUT M.U.T.-III SE
  1. Start the engine.
  2. Check fuel rail pressure sensor signal voltage.
+GroundConditionVoltage
(Approx.)
Fuel rail pressure sensor
ConnectorTerminal
F792GroundEngine speed: idle1 V
Engine speed: Revving engine from idle to 4,000 rpm1.1 V
 
Is the inspection result normal?
INSPECTION END
Replace high pressure fuel pump. Refer to Removal and Installation.