2007 FORD FIESTA engine

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-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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Fuel Charging and Controls - 2.OL
303-04B-7 Duratec-HE (M14) 303-04B-7
DIAGNOSIS AND TESTING
I
The block heater can be connected to an external Throttle body
power supply, which will pre-heat the engine
i coolant contained within the cylinder block. The
' heated coolant will radiate heat to the fuel rail,
which will warm the contained fuel. Sufficient
warmed fuel is stored in the fuel rail to allow the
engine to start and continue running correctly, until
the engine combustion generates sufficient heat
to maintain correct operating conditions.
Fuel rail
The throttle body on Ethanol E85 vehicles is the
same as non Ethanol E85 variants. This is a fully
electronic controlled and monitored component.
The PCM adapts to the wear characteristics of the
throttle plate. If a new throttle body is installed, it
is necessary to teach the values of the new throttle
body to the PCM. If installing a new throttle body,
follow the initialization procedure.
REFER to: Throttle Body
(303-04C, Removal and
Installation).
The fuel rail on Ethanol E85 vehicles is the same
' as non Ethanol E85 variants. The fuel rail function
is to supply a reservoir of fuel at equal pressure
for all four fuel injectors.
2006.0 Fiesta i212006 GI 65371 en
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Fuel Charging and Controls - 2.OL
303-04B-9 Duratec-HE (M14) 303-04B-9
DIAGNOSIS AND TESTING
Symptom Chart
Symptom Chart
Symptom
Possible Sources Action
Engine does not crank
Engine cranks but does not
start PATS. CHECK
the PATS LED extin-
guishes within 3 seconds when
the ignition is turned on.
REFER to: Anti-Theft
- Passive
(41 9-01
8, Diagnosis and
Testing).
Starting system.
REFER to: Starting System
(303-06, Diagnosis and
Testing).
Ignition switch. REFER to the Wiring
Diagrams.
Powertrain control module
(PCM).
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Low fuel system pressure.
Inertia fuel shutoff (IFS) switch.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
RESET the IFS switch.
Fuel lines damaged or blocked.
INSPECT the fuel lines.
INSTALL new components as
necessary. TEST the system
for normal operation.
I Fuel filter blocked. I INSTALL a new fuel filter. I
Fuel pump module. REFER to: Fuel System - 1.3L
Duratec-8V (Rocam)/l.25L
Duratec-1 6V (Sigma)/2.OL
Duratec-HE (M14)/1.4L
Duratec-1 6V (Sigma)/l .6L
Duratec-1
6V (Sigma) (31 0-00
Fuel System
- General
Information, Diagnosis and
Testing).
Crankshaft position (CKP)
sensor. Carry out a
full engine
diagnosis using the guided
diagnostic menu in WDS.
Camshaft position (CMP)
sensor. Carry out a
full engine
diagnosis using the guided
diagnostic menu in WDS.
PCM. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
2006.0 Fiesta 1212006 GI 65371 en
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Fuel Charging and Controls - 2.OL
303-048-1 0 Duratec-HE (M14) 303-04B-10
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Fuel rail fuel pressure sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Fuel injectors. INSPECT
the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
I Incorrect valve timing. I CHECK the valve timing. I
Poor starting
Low cylinder compression.
Low fuel system pressure.
TEST the cylinder compres-
sion.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
Fuel system leak. CHECK the system for fuel
leak(s). REPAIR the system as
necessary.
Fuel system restriction. INSPECT the
fuel system.
INSTALL new components as
necessary. TEST the system
for normal operation.
I Fuel filter blocked. I INSTALL a new fuel filter. I
lncorrect engine oil.
Air
cleaner element blocked.
INSTALL a new engine oil filter
and engine oil.
INSTALL a new air cleaner
element.
lncorrect power steering fluid. DRAIN and REFILL the
power
steering system with the correct
fluid.
REFER to: Power Steering
System Flushing
- Vehicles
With: Electro-Hydraulic Power
Steering (EHPS) (21 1-00,
General Procedures).
2006.0 Fiesta 1212006 GI 65371 en
CKP sensor.
Engine coolant temperature
(ECT) sensor. Carry out a
full engine
diagnosis using the guided
diagnostic menu in WDS.
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
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Fuel Charging and Controls - 2.OL
303-04B-1 I Duratec-HE (M14) 303-04B-11
DIAGNOSIS AND TESTING
Symptom Possible Sources
Action
Fuel injector(s). INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
Fuel rail fuel pressure sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Catalytic converter blocked. REMOVE and visually
INSPECT the catalytic
converter as necessary.
REFER to: Catalytic Converter
- 1.8L Duratec-HE (M14)/2.OL
Duratec-HE (M14) (309-00,
Removal and Installation).
Low cylinder compression. TEST the engine cylinder
compression.
Engine starts but immediately
stops Air cleaner element blocked. INSTALL
a new air cleaner
element.
CKP sensor.
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
CMP sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
PCM. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Low fuel system pressure.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
Fuel system
restriction
I
--
INSPECT the fuel system.
INSTALL new components as
necessary. TEST the system
for normal operation.
I Fuel filter blocked. I INSTALL a new fuel filter. I
Poor idling Air cleaner
element blocked. INSTALL a new air cleaner
element.
2006.0 Fiesta 1212006 GI 65371 en
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Fuel Charging and Controls - 2.OL
303-048-1 2 Duratec-HE (M14) 303-04B-12
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Incorrect or contaminated fuel. CHECK for signs of
tion such as strange odors from
the fuel tank.
If contaminated fuel is found,
DRAIN the complete fuel
system. FLUSH the fuel system
through with clean gasoline.
REFER to: Fuel Tank Draining
(31
0-OOA, General Proced-
u res)
.
INSTALL a new fuel filter.
INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
INSTALL a new fuel rail.
REFER to: Fuel Injection
Supply Manifold
(303-04C,
Removal and Installation).
Low fuel system pressure. Check the fuel system pres-
sure.
RE.FER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
I Fuel filter blocked. I INSTALL a new fuel filter. I
EGR valve sticking open. REFER to: Engine Emission
Control (303-08 Engine
Emission Control
- 2.OL
Duratec-HE (M14), Diagnosis
and Testing).
INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
CKP sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Knock sensor (KS). Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Fuel injection supply manifold
fuel pressure sensor. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
2006.0 Fiesta 1212006 GI 65371 en
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Fuel Charging and Controls - 2.OL
303-04B-13 Duratec-HE (M14) 303-04B-13
DIAGNOSIS AND TESTING
Possible Sources Action
,
Engine ignition.
Symptom
Engine stumbling
Engine lacks power
REFER to: Engine lgnition
(303-07B, Diagnosis and
Testing).
Fuel injectors.
INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
Low fuel system pressure.
EGR valve sticking open.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
Fuel rail fuel pressure sensor.
REFER to: Engine Emission
Control (303-08 Engine
Emission Control
- 2.OL
Duratec-HE (M14), Diagnosis
and Testing).
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Engine ignition. REFER to: Engine lgnition
(303-07B, Diagnosis and
Testing).
Brakes binding.
I CHECK the braking system.
REFER to: Brake System (206-
1 00, Diagnosis and Testing).
Vehicle overloaded, or
excessive wind resistance (roof
racks, towing etc). ADVISE
the customer about
the effects of overloading the
vehicle and wind resistance on
the fuel consumption.
Air cleaner element blocked.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
INSTALL a new air cleaner
element as necessary.
Low fuel system pressure.
r
Check the fuel system pres-
sure.
2006.0 Fiesta 1212006 GI 65371 en
Kinked or restricted fuel lines. INSPECT the fuel lines.
INSTALL new components as
necessary. TEST the system
for normal operation.
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