Operation Section
1
–
10
(3) HP3 Type, HP4 Type
HP3 Type
• This system uses an HP3 type supply pump that is compact, lightweight and provides higher pressure. It is mostly
mounted in passenger cars and small trucks.
HP4 Type
• This system is basically the same as the HP3 type, however it uses the HP4 type supply pump, which has an in-
creased pumping quantity to handle larger engines. This system is mostly mounted in medium-size trucks.
Exterior View of Main System Components
Mounting Diagram for Main System Components
Q000759E
HP3 HP4
InjectorSupply Pump
Rail
Q000760E
Supply Pump
SCV
(Suction Control
Valve)
Fuel Temperature
Sensor
Fuel Temperature
Sensor
Injector
Engine ECU
EDU
DLC3 Connector
R/B
EGR Valve
E-VRV for EGR
EGR Shut-Off VSV
Throttle Body
Crankshaft Position Sensor
(Engine Speed Sensor)
Cylinder Recognition Sensor
(TDC (G) Sensor)
Accelerator Position Sensor
Intake Air
Pressure
Sensor
Airflow Meter
(with Intake Air
Temperature Sensor)
Coolant Temperature Sensor
HP3 HP4
(Suction Control
Valve)
SCV
Pressure Discharge Valve
Rail Pressure Sensor
To Next Page
Loading...
