2007 FORD FIESTA charging

Fuel Charging and Controls - 1.25L
Duratec-I 6V (Sigma)ll.4L Duratec-I 6V
(Sigma)ll.6L Duratec-1 6V (Sigma)
REMOVAL AND INSTALLATION
Disconnect the fuel supply line from the fuel 10. Remove the fuel pressure regulator.
injection supply manifold. For additional
information, refer to Section 31 0-00 [Fuel
System
- General Information].
8. N0TE:Fuel supply line connectors are white
or are identified by a white band. Fuel return
line connectors are red or are identified by
a red band.
Disconnect the fuel return line from the fuel
injection supply manifold. For additional
information, refer to Section 31 0-00 [Fuel
System
- General Information].
9. Remove the fuel injection supply manifold.
11. Remove and discard the O-ring seal.
12.
N0TE:Discard the fuel injector O-ring seals.
Remove the fuel injectors from the fuel
injection supply manifold.
1. Lift the retaining clip.
2. Slide the retaining clip. .
3. Pull the fuel injector.
2006.0 Fiesta 1212006 GI 89083en
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Fuel Charging and Controls - 1.25L
Duratec-I 6V (Sigma)llI4L Duratec-1 6V
303-04A-9 (Sigma)ll .6L Duratec-1 6V (Sigma) 303-04A-9
REMOVAL AND INSTALLATION
13. Remove and discard the O-ring seals.
Installation
WARNINGS:
A Do not smoke or carry lighted tobacco or
open flame of any type when working on
or near any fuel related components.
Highly flammable vapors are always
present and can ignite. Failure to follow
these instructions may result in personal
injury.
( A This procedure involves fuel handling. Be ' prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury.
1. N0TE:lnstall new fuel injector O-ring seals.
N0TE:lnstall a new fuel pressure regulator O-ring
seal.
.
N0TE:Lubricate the O-ring seals with clean engine
oil to aid installation.
To install, reverse the removal procedure.
2006.0 Fiesta IZIZOO~ GI 89083en
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Fuel Charging and Controls - 2.OL
Duratec-HE (M14)
I SECTION 303-04B Fuel Charging and Controls - 2.OL
Duratec-HE (M14)
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
........................................................................\
............................................ Specifications.. 303-04B-2
DESCRIPTION AND OPERATION
Fuel Charging and Controls ........................................................................\
.................... 303-048-3
DIAGNOSIS AND TESTING
Fuel Charging and Controls ........................................................................\
.................... 303-04B-5
Principles of Operation
........................................................................\
........................... 303-04B-5
Inspection and Verification
........................................................................\
.......................... 303-048-8
Symptom Chart ........................................................................\
...................................... 303-04B-9
REMOVAL AND INSTALLATION /
(< Throttle Body 303-048-24 ........................................................................\
..............................................
Fuel Injectors ........................................................................\
.......................... (23 455 0) 303-048-26
Fuel Rail ........................................................................\
...................................................... 303-04B-27
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Fuel Charging and Controls - 2.OL
Duratec-HE (M14)
SPECIFICATIONS
Torque Specifications
I Fuel injection supply manifold retaining bolts I 25 I 18 I - I
Description
2006.0 Fiesta 1212006 G37518en
(.
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Fuel Charging and Controls - 2.OL
Duratec-HE (M14)
DESCRIPTION AND OPERATION
Fuel Charging and Controls
Item Description Fuel Injection Supply Manifold
4 1 Fuel injector
The fuel injectors are fitted directly into the fuel
injection supply manifold and are retained by the
3
fuel injector retaining clips. Sealing between the
The fuel
injection supply manifold is retained to the
engine by two bolts. The fuel injection supply
1
2
2006.0 Fiesta 1212006 G385113en
Fuel injection supply manifold
Fuel injector retaining clip
Fuel injector O-ring seals manifold-has pressed steel
cups to
house the fuel
injectors.
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Fuel Charging and Controls - 2.OL
303-04B-4 Duratec-HE (M14) 303-04B-4
DESCRIPTION AND OPERATION
fuel injector to fuel injection supply manifold and
The fuel injectors are activated sequentially by the
the intake manifold is achieved by means of upper
powertrain control module (PCM) which modifies
and lower O-ring seals.
the fuel quantity by adjusting fuel injector opening
times according to the engine operating conditions.
Throttle Body The throttle body also gives inputs back to the
Item Description The signal from the PCM is used to control a DC
The throttle butterfly position is controlled by a
signal from the PCM which receives an input from
the accelerator pedal position sensor. The system
is fully electronic and does not use any cables.
I
PCM. This information allows the PCM to
compensate for factors such as carbon build up
within the throttle body and throttle body wear. The
throttle body also provides information to the PCM
to enable the flagging of a DTC.
Throttle
body
2006.0 Fiesta 1212006 G385113en
motor within the throttle body which is connected
to the throttle butterfly through gears.
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Fuel Charging and Controls - 2.OL
303-04B-5 Duratec-HE (M14) 303-04B-5
DIAGNOSIS AND TESTING
Fuel Charging and Controls
General Equipment
Wgnostic System (WDS) I
Principles of Operation
Ethanol equipped vehicles
Ethanol, is derived from cellulose waste. A large
proportion of Ethanol is distilled from corn, wheat
and sugar cane crops. The product that is to be
used in this vehicle is called Ethanol E85. E85 is
a mixture of 15% gasoline and 85% Ethanol.
Ethanol is a clear liquid and when fully burnt the
combustion gasses remaining are Carbon Dioxide
and water. This makes the use of Ethanol a good
environmental proposition. One drawback with pure
Ethanol is that it is corrosive to certain rubber and
plastic materials. The
introduction of Ethanol E85 has required some
major internal changes to the fuel supply and
delivery system. Some earlier vehicles used an
Ethanol mixture called Ethanol
El 5. This fuel was
made up of 15% Ethanol and 85% gasoline. At this
mixture ratio, no changes to the fuel charging or
delivery system where required, as no degradation
would occur with the cylinder head valves or
material content of the components, although some
performance loss would be noticeable.
The components used by vehicles running Ethanol
appear to be the same in construction as those
that use unleaded fuel only. The changes are
mainly to do with the materials used and increases
in fuel flow rates.
Ethanol has a much higher octane rating than
standard fuel which means that the ignition and
fuel injection calibrations for a vehicle that is
capable of using Ethanol E85 must be adapted
suitably.
I Item Description
I 1 I Fuel injectors
1ue1 rail I
2006.0 Fiesta 1212006 GI 65371 en
Item Description
3
4
Block heater
Fuel pump module
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Fuel Charging and Controls - 2.OL
303-04B-6 Duratec-HE (M14) 303-04B-6
DIAGNOSIS AND TESTING
1 6 1 Heated Oxygen sensor (H02s) I
Item Description Fuel supply
1 7 1 Intake manifold I
5
Fuel injectors
Throttle body
The fuel supply for all petrol fueled variants is
equipped with a return-less fuel system. This
means that the fuel delivery pressure at the fuel
injectors, is monitored and controlled by the fuel
tank module. This control is achived by switching
the fuel pump on and off.
The fuel pump module for both the Ethanol E85
TO maintain the same or similar power output to variant vehicle and the unleaded fueled vehicle are
that of the unleaded fuel vehicle, the fuel injectors
very similar, visual^ the only difference is the fuel
have been replaced with high flow fuel injectors. pump electrical connections which on the Ethanol
E85 variant is sealed. This is not the only
differance, both fuel pump modules have different
(
Fuel composition monitoring fuel level sensor resistor card values.
The quantity of Ethanol E85 in relation to the
quantity of unleaded fuel contained in the fuel tank
at any one time is not monitored at the fuel tank.
The Ethanol percentage volume can only decrease
from its maximum 85% (pure Ethanol
E85), to zero
(1 00% unleaded fuel).
The fuel charging system compensates for the
changes in fuel composition using the signal
received by the power train control module (PCM)
from the
H02s. The PCM adapts the fueling and
ignition calibrations to suit the current fuel tank
content composition.
Cold start
To overcome the problems relating to cold start
inherent with Ethanol E85 vehicles (temperatures
down to -29 degrees centigrade), a block heater
has been installed into the engine coolant system.
The block heater is located to the rear of the engine
under the exhaust manifold. The block heater is
fitted with a dedicated harness which terminates at an external plug connector fitted into the radiator
grill.
2006.0 Fiesta 1212006
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