Ford Galaxy / Ford S-MAX. Manual — part 370

Description

FRP sensor

CAUTION: The FRP sensor must not be detached or removed from the fuel rail.

Failure to follow this instruction may result in foreign material ingress to the fuel injection
system.

The fuel rail is made from forged steel and is retained by a support bracket located on the
cylinder block.

The fuel is delivered to the fuel rail by one high-pressure fuel supply line from the fuel
pump.

From the fuel rail, the fuel travels through high-pressure fuel supply line(s) to the fuel
injector(s).

Fuel injectors

Item

1

Part Number

-

Description

Fuel injector electrical connector

Fuel injector

High-pressure fuel supply port

Sealing washer

Fuel injector retaining clamp bolt

Fuel injector retaining clamp

Fuel injector fuel return line retaining clip

NOTE: New fuel injector fuel return line retaining clips must be installed, when the fuel
injector fuel return line has been removed from the fuel injectors.

The fuel injector(s) are offset by 20 degrees from vertical in the cylinder head upper section
and are attached by means of retaining clamps.

The fuel injector(s) are sealed from the combustion chamber by means of a copper sealing
washer located between the fuel injector and the cylinder head. A new sealing washer must
always be installed when carrying out installation work.

The fuel injectors are controlled directly by the PCM.

The fuel return line(s) are attached to the fuel injectors by using the fuel injector fuel return
line retaining clips and are connected in parallel.

Item

1

2

3

4

5

6

7

Part Number

-

-

-

-

-

-

-

Fuel Charging and Controls - 1.8L
Duratorq-TDCi (74kW/100PS) -
Lynx/1.8L Duratorq-TDCi (92kW/125PS)
- Lynx - Fuel Charging and Controls

S-MAX/Galaxy 2006.5 (02/2006-)

Print

Diagnosis and Testing

General Equipment

Principles of Operation

The systems main components consist of a fuel pump, fuel rail, electrically operated fuel
injectors and a fuel temperature sensor.

Fuel pump

Description

Fuel pump fuel supply port

High-pressure fuel pump chamber

Fuel pump fuel supply union

Fuel pressure regulator

High-pressure fuel supply line port

Fuel metering valve

The fuel pump consists of a transfer pump and a high-pressure fuel delivery pump. The
transfer pump draws fuel from the fuel tank through the fuel filter and delivers the fuel to
the three high-pressure fuel pump chambers through a fuel metering valve.

Fuel is also delivered to the high-pressure fuel pump chambers through a internal
scavenging valve to lubricate and maintain fuel in the fuel pump.

The fuel metering valve controls the quantity of fuel that is allowed to enter the high-
pressure fuel pump chambers. Excess fuel volume developed in the high-pressure fuel
pump chamber is returned to the fuel tank. The fuel metering valve is controlled by the
powertrain control module (PCM) using a pulse-width modulated signal.

The high-pressure fuel pump supply pressure is controlled by an electronic fuel metering

Ford approved diagnostic tool

Item

1

2

3

4

5

6

Part Number

-

-

-

-

-

-

valve which is also controlled by the PCM.

Description

Transfer pump

Fuel metering valve

High-pressure fuel pump chambers

Fuel pressure regulator

Fuel pump internal pressure regulator

Scavenging valve

Fuel pump fuel supply port

High-pressure fuel supply port

Fuel pump fuel return port

Fuel rail

Item

1

2

3

4

5

6

a

b

c

Part Number

-

-

-

-

-

-

-

-

-