PR25DD engine
- CHECK HIGH PRESSURE FUEL PUMP-1
- Turn ignition switch OFF.
- Disconnect high pressure fuel pump harness connector.
- Check the resistance between high pressure fuel pump terminals as follows.
High pressure fuel pump
Condition
Resistance
+
-
Terminal
1
2
Temperature deg. C (deg. F)
20 - 30 (68 - 86)
0.46 - 0.51 Ohm
Is the inspection result normal?
YES
GO TO 2.
NO
Replace high pressure fuel pump. Refer to HIGH PRESSURE FUEL PUMP AND FUEL HOSE : Removal & Installation .
- CHECK HIGH PRESSURE FUEL PUMP-2
WITH CONSULT
- Reconnect high pressure fuel pump harness connector.
- Start the engine.
- Check "FUEL PRES SEN" in "DATA MONITOR" of "ENGINE" with CONSULT.
Data monitor item
Condition
Voltage
(Approx.)
FUEL PRES SEN V
Engine speed: idle
0.85V
Engine speed: Revving engine from idle to 4, 000 rpm
0.97 V
WITHOUT CONSULT
- Start the engine.
- Check fuel rail pressure sensor signal voltage.
+
Ground
Condition
Voltage
(Approx.)
Fuel rail pressure sensor
Connector
Terminal
F116
2
Ground
Engine speed: idle
0.85 V
Engine speed: Revving engine from idle to 4, 000 rpm
0.97 V
Is the inspection result normal?
YES
INSPECTION END
NO
Replace high pressure fuel pump. Refer to HIGH PRESSURE FUEL PUMP AND FUEL HOSE : Removal & Installation .