Section 07
ENGINE MANAGEMENT (4-TEC)
Subsection 02
(OVERVIEW)
SMR2002-077_07-02A.FM
07-02-5
Throttle Body
It is a 52 mm throttle body mounted on intake
manifold. Fitted on the throttle body, there is the
TPS and the idle bypass valve which allows the
EMS ECU to control the RPM while the throttle
plate is closed.
FUEL PUMP MODULE
The fuel pump module is located inside the fuel
tank. The module includes fuel pump, fuel pres-
sure regulator and fuel level sensor.
Fuel Pump
It provides fuel pressure and flow rate to the system.
Fuel Pressure Regulator
A fuel pressure regulator controls the pressure in
the system and allows the excess of fuel to return
to the fuel tank. The fuel pressure regulator regu-
lates the fuel pressure at approximately 303 kPa
(44 PSI).
Fuel Filter
A mesh filter is located at the bottom of the fuel
pump module inside the fuel tank.
ELECTRONIC MANAGEMENT
EMS
(engine management system)
The engine management system is controlled by
the EMS ECU.
1. EMS ECU
EMS ECU
The EMS ECU is mounted on the intake manifold.
It controls all engine management functions, by
processing the information given by various sen-
sors.
1. EMS ECU on intake manifold
R1503motr217A
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R1503motr215A
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R1503motr214A
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