Section 08 ENGINE MANAGEMENT (4-TEC)
Subsection 01 (OVERVIEW)
FUEL PUMP MODULE
R1503motr217A
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 sys-
tem.
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 reg-
ulates the fuel pressure at approximately 303 kPa
(44 PSI) for all 4-TEC Naturally-Aspirated, super-
charged engines and at 399 kPa (58 PSI) for inter-
cooled engines.
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 EMS is controlled by its ECM (Engine Control
Module).
1
R1503motr215A
TYPICAL
1. ECM
ECM (Engine Control Module)
TheECMismountedontheintakemanifold. It
controls all engine management functions, by pro-
cessing the information given by various sensors.
1
R1503motr214A
TYPICAL
1. ECMonintakemanifold
396 smr2004-Complete Line Up
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