fuel line FORD KUGA 2011 1.G Owner's Manual

Action
Possible Sources
Symptom
• CHECK for signs of contamina-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
(310-00 Fuel System -
General Information, General
Procedures).
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.
REFER to: Fuel Injectors (303-
04 Fuel Charging and
Controls - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• INSTALL a new fuel rail.
REFER to: Fuel Rail(303-04
Fuel Charging and Controls -
2.5L Duratec (147kW/200PS)
- VI5, Removal and Installa-
tion).
• Incorrect or contaminated fuel.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• KS.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• CKP sensor.
• 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.
REFER to: Fuel Injectors (303-
04 Fuel Charging and
Controls - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• Fuel injector(s).
G1183441en2008.50 Kuga8/2011
303-04A-
18
Fuel Charging and Controls
— 2.5L Duratec (147kW/200PS) -
VI5
303-04A- 18
DIAGNOSIS AND TESTING
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

6
79108
123
4
5
6
79108
E97592
Description
Item
Exhaust manifold
1
PCV (positive crankcase ventilation)- hose
Comments:to cylinder head
2
Vacuum line - recirculated air valve
Comments:to intake manifold
3
Coolant return pipe
4Description
Item
Turbo boost pressure controller
5
Oil supply pipe - TC
6
Wastegate control valve
7
TC
Comments:Contains the recirculated air valve
8
Coolant supply pipe
9
Oil return pipe - TC
10
G1032424en2008.50 Kuga8/2011
303-04B- 3
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 3
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Turbocharger – Overview
Turbocharger(s)
CAUTION: Do not switch off the engine
while it is running at high speed. If the
engine is switched off while it is running
at high speed, the turbocharger will
continue to run after the engine oil
pressure has already dropped to zero. This
will cause premature wear in the
turbocharger bearings.
A TC consists of an exhaust turbine located in the
exhaust gas flow, this turbine is connected to a
compressor by a shaft. The turbine is made to
rotate by the exhaust gas flow from the engine and
thus drives the compressor. The compressor
increases the pressure in the engine intake tract
so that a greater mass of air enters the cylinder
during the intake stroke.
The turbine housing of the TC is integrated into the
exhaust manifold. This construction offers
thermodynamic advantages compared with the
usual construction, the maximum exhaust
temperature is up to 1050°C.
The maximum boost pressure is 0.65 bar.
The exhaust manifold is secured to the exhaust
side of the cylinder head with 12 self-locking nuts.
The exhaust manifold gasket is a multi-layer steel
gasket and cannot be reused. In order to
compensate for the thermal expansion of the
exhaust manifold, the flange of the TC is provided
with two grooves.
The TC and the exhaust manifold are joined by a
hose clip. The hose clip must not be loosened or
removed. The TC and the exhaust manifold are
not available as separate replacement parts,
exchange is only possible as a complete unit.
The turbocharger heat shield is secured to the
exhaust manifold by four bolts. Two of the bolts
have spring washers underneath their heads.
During removal, make a note of the installation
location of the spring washers to refer to during
installation.
The recirculated air valve is built into the TC
housing and cannot be changed.
The Ford diagnostic unit can test the operation of
the wastegate control valve using actuator
diagnosis.
The boost pressure regulator is set in the factory.
Adjustments to the boost pressure regulator must never be attempted. A red colored seal is applied
to the adjustment nut of the operating rod, in order
to monitor the factory setting of the boost pressure.
The bearings of the TC are lubricated with engine
oil. The engine oil passes from the cylinder block
through the oil supply pipe to the TC. The oil is
returned to the oil pan through the oil return pipe,
The TC is cooled by the engine coolant circuit.
When installing hoses and lines, make certain that
their ends are free of oil residues and dirt.
G1032425en2008.50 Kuga8/2011
303-04B-
4
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 4
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Description
Item
PWM (pulse width modulation) signal
Comments:from PCM (powertrain control module)
5
Atmospheric pressure
6
Turbocharger boost pressure.
7
from air filter
8
Intake air
9Description
Item
Recirculated air valveRefertoComponentDescription:(page
7)
10
Vacuum line, recirculated air valve
11
to intake manifold
12
Throttle plate
13
Compressor
14
Turbine
15
System Operation
Turbocharger(s)
The TC consists of a turbine and a compressor.
The turbine is driven by the exhaust gas flow. A
common shaft drives the compressor and this then
compresses the intake air.
Turbocharger boost pressure control
E98942
1
2
3
4
Description
Item
Atmospheric pressure
1
Turbocharger boost pressure.
2
Wastegate control valve
3
Pilot pressure
4
The size of the TC is designed to produce a charge
effect even at medium engine speeds and lower
exhaust gas flows. This means that, when the engine speed is high and there is a large amount
of exhaust gas, either the boost pressure of the
TC will become too high or its speed will be too
high. The TC must therefore be regulated. The
best regulation is achieved by an electronically
controlled wastegate control valve. The wastegate
control valve controls the pressure on the
membrane in the boost pressure regulator.
The wastegate control valve is actuated by the
PCM with a PWM signal according to a map. The
boost pressure is applied to the wastegate control
valve via the pressure line from the compressor.
This pressure is passed to the boost pressure
regulator via the wastegate control valve. This
opens the bypass valve using a linkage. This
channels a portion of the exhaust gases around
the turbine. If the wastegate control valve is
actuated by the PCM, a bypass is opened in the
wastegate control valve. This causes the pressure
which can act on the membrane in the boost
pressure regulator to be reduced. This occurs until
the boost pressure has reached a set value. By
actuation with a PWM signal, it is also possible to
partially open or close the wastegate control valve.
This results in a constant boost pressure and
therefore high torque over a wide range of engine
speeds.
Because the PCM calculates the boost pressure
using the signal from the boost pressure sensor
and the IAT (intake air temperature) sensor, the
atmospheric pressure and the temperature are
automatically compensated for. Because of this
compensation, the engine power is not noticeably
affected by variations in atmospheric temperature
or pressure.
G1032426en2008.50 Kuga8/2011
303-04B-
6
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 6
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Recirculated air valve
E97052
43
2
1
Description
Item
Recirculated air valve
1
Vacuum hose to intake manifold
2
Air ingress
3
Air discharge
4
If the throttle valve is closed quickly, the moving
air column hits the throttle valve. The air column
is reversed, flows back onto the rotating impeller
of the TC and powerfully decelerates it. A
recirculated air valve is installed to prevent this
deceleration of the impeller and thus allow the TC
to respond faster. The recirculated air valve is
controlled via a vacuum line which is connected to
the intake manifold. When the throttle valve is
suddenly closed, a high vacuum occurs in the
intake manifold. This opens the recirculated air
valve and the compressed air is returned to a point
before the compressor. This causes the speed of
the turbocharger to drop less rapidly and the boost
pressure can build up more rapidly when the
accelerator pedal is pressed again.
Component Description
Wastegate control valve
1
2
3
E98852
Description
Item
from turbocharger (boost pressure)
1
from turbocharger (atmospheric pressure)
2
to boost pressure regulator (control
pressure)
3
The wastegate control valve operates as a cycle
valve. The pressure acting on the membrane in
the boost pressure regulator is controlled by
appropriate pulsing of the wastegate control valve.
The pressure acting on the membrane in the boost
pressure regulator is reduced when the wastegate
control valve opens.
The operating voltage of the wastegate control
valve is 12V.
The internal resistance of the wastegate control
valve is 28.5 ± 1.5 Ohms.
The operating states are:
• De-energised: gate open between 1 and 3 – Boost pressure high > wastegate controlvalve closed > boost pressure regulator open
> turbine receives restricted exhaust gas
flow.
• Energised: gate open between 2 and 3 – Boost pressure low > wastegate control valveopen > boost pressure regulator closed >
turbine receives full exhaust gas flow.
G1032426en2008.50 Kuga8/2011
303-04B- 7
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 7
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Action
Possible Sources
Symptom
• INSPECT the turbocharger forsigns of damage. INSTALL a
new turbocharger as neces-
sary.
REFER to: Turbocharger (303-
04 Fuel Charging and
Controls - Turbocharger -
2.5L Duratec (147kW/200PS)
- VI5, Removal and Installa-
tion).
• Turbocharger compressor
rubbing on housing walls.
• Turbocharger turbine rubbing on housing walls.
• Turbocharger bearings and oil seal(s).
• Turbocharger oil supply tube blocked or damaged.
• Blue smoke with excessive
turbocharger noise
• Check the oil return tube forblockage or damage, INSTALL
a new oil return tube as neces-
sary.
• Turbocharger oil return tube
blocked or damaged.
• Blue smoke without excessive
turbocharger noise
• CHECK all vacuum line(s) areinstalled and no signs of air
leaks are present. REPAIR as
necessary.
• Vacuum diaphragm unit
vacuum line(s).
• Poor engine performance
• CHECK the charge air cooler,charge air cooler pipes and
charge air cooler hoses for
leaks and obstructions.
REPAIR as necessary.
• Charge air cooler system.
• CHECK the air cleaner intakepipe for obstruction. REPAIR
the necessary.
• Air cleaner intake pipe.
• The turbocharger boost pres-sure is factory set and must not
be adjusted. CHECK the paint
seal on the vacuum diaphragm
unit actuator rod has not been
broken. If the paint seal has
been broken, INSTALL a new
turbocharger.
REFER to: Turbocharger (303-
04 Fuel Charging and
Controls - Turbocharger -
2.5L Duratec (147kW/200PS)
- VI5, Removal and Installa-
tion).
• Unauthorized adjustment of the
vacuum diaphragm unit actu-
ator rod.
• CHECK the vacuum diaphragmunit actuator rod moves freely,
If the vacuum diaphragm unit
actuator rod does not move
freely. CHECK for signs of
damage or signs of foreign
material. REPAIR as neces-
sary.
• Vacuum diaphragm unit actu-
ator rod.
G1183442en2008.50 Kuga8/2011
303-04B- 10
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 10
DIAGNOSIS AND TESTING
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Description
Item
Medium speed CAN data bus (MS-CAN)
1
DLC
2
GEM
Comments:Serves as a gateway between the two
CAN databus systems.
3
High speed CAN data bus (HS-CAN)
4
PCMRefertoComponentDescription:(page
8)
5
LIN (local interconnect network) databus
6
Alternator
7
Heating element - broadband HO2S
8
Catalyst monitor sensor heating element
9
Powertrain Control Module relay
10
Starter Relay
11
FPDM
Comments:Refer to: Fuel Tank and Lines - 2.5L
Duratec (147kW/200PS) - VI5 (310-01
Fuel Tank and Lines, Description and
Operation).
12
Fuel pump
13
injectorsRefertoComponentDescription:(page
?)
Comments: 5x
14Description
Item
Air conditioning clutch relay
Comments:Refer to: Climate Control (412-01
Climate Control, Description and
Operation).
15
EVAP valve
Comments:
16
VCT oil control solenoid, exhaust camshaftRefer to Component Description:
solenoids(page26)
17
VCT oil control solenoid, intake camshaftRefer to Component Description:
solenoids(page26)
18
Cooling fan module
Comments:Refer to: Engine Cooling - 2.5L Duratec
(147kW/200PS) - VI5 (303-03 Engine
Cooling, Description and Operation).
19
Wastegate control valve
Comments:Refer to: Turbocharger (303-04 Fuel
Charging and Controls - Turbocharger
- 2.5L Duratec (147kW/200PS) - VI5,
Description and Operation).
20
Ignition coil-on-plugRefertoComponentDescription:(page
10)
Comments: 5x
21
Throttle control unitRefertoComponentDescription:(page
30)
Comments: Actuator motor unit
22
System Operation
The engine is controlled by the PCM. For this
purpose, the PCM uses information from the
sensors, sender units and switches. In addition,
the PCM receives information from other control
modules via the CAN data bus. All the information
is processed in the PCM and is used to control or
regulate the different actuators.
These are:
• the throttle control unit,
• the fuel injectors, • the camshaft adjustment,
• the boost control solenoid valve
• and the ignition coils.
Some values are sent via the CAN databus to other
systems.
The following functions are regulated or controlled
by the PCM:
G1021908en2008.50 Kuga8/2011
303-14-
16
Electronic Engine Controls— 2.5L Duratec (147kW/200PS) - VI5303-14-
16
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

actuated) or opened (actuated). Each cylinder has
its own injector. The injection is accurately dosed
and takes place at a time determined by the PCM.
Injection takes place immediately in front of the
intake valves of the cylinder. The injectors are
actuated ground side via end-stages integrated
into the PCM and using the signal calculated by
the engine management system. Power is supplied
via the Powertrain Control Module relay in the BJB.
The injected fuel quantity depends on the opening
time, the fuel pressure and the diameter of the
nozzle holes.
The fuel metering is determined via open or
closed-loop control.
The open control loop differs from the closed
control loop in that the lambda control is
deactivated.
The PCM switches from closed to open-loop control
if the HO2S cools down to below 600°C or fails, as
well as when accelerating, coasting and at full load.
Regulation of injected fuel quantity via the PCM
involves:
• controlling the fuel pump,
• calculating the required quantity of fuel forengine starting,
• observance of the desired air/fuel ratio,
• calculating air mass,
• and calculating the fuel quantity for the different operating states and corresponding fuel
adjustment measures.
Open loop control
Open loop control is used primarily for fuel
injection, as long as the signals of the HO2S are
not involved in the calculation of the PCM.
The two most important reasons that make it
absolutely essential to run the engine without
lambda control (open-loop control) are the following
operating conditions:
• Cold engine (starting, warm-up phase)
• Full-load operation (WOT (wide open throttle))
Under these operating conditions the engine needs
a rich air/fuel mixture with lambda values below λ
= 1 in order to achieve optimum running or
optimum performance.
It is possible to keep this unregulated range very
small by using a broadband HO2S.
Closed-loop control
Closed loop control ensures strict control of
exhaust emissions in conjunction with the TWC (three-way catalytic converter) and economical fuel
consumption. With closed loop control, the signals
from the HO2S are analyzed by the PCM and the
engine always runs in the optimum range of λ = 1.
In addition to the normal HO2S, the signal from the
monitoring sensor for the catalytic converter is also
included in the control. The lambda control is
optimized on the basis of this data.
Certain factors such as wear, component
tolerances or more minor defects such as air leaks
in the intake system are compensated for by
lambda control. If the deviation occurs for a longer
period of time, this is recorded by the adaptive
(self-learning) function of lambda control. In this
instance, the entire map is shifted by the
corresponding amount, to enable control to
commence once again from the virtual baseline.
These adaptive settings are stored in the PCM and
are also used in open-loop control conditions.
If the adaptive value is too high or too low, an error
is stored in the fault memory of the PCM.
Oxygen sensor (HO2S) and catalyst monitor
sensor
A broadband HO2S is used as the HO2S. The
HO2S is located in front of the TWC. The catalyst
monitor sensor is located in the center of the TWC
so that it can detect any deterioration in the
cleaning performance of the TWC more quickly.
The HO2S measures the residual amount of
oxygen in the exhaust before the TWC.
The catalyst monitor sensor measures the amount
of oxygen in the exhaust gas after or in the TWC.
Both the HO2S and the catalyst monitor sensor
transmit these data to the PCM.
The broadband HO2S works at temperatures of
between 650°C and 900 °C. If the temperature
rises above 1000°C, the oxygen sensor will be
irreparably damaged.
To reach optimum operating temperature as quickly
as possible, an electrically-heated oxygen sensor
is installed. The heating also serves to maintain a
suitable operating temperature while coasting, for
example, when no hot gases are flowing past the
oxygen sensor.
The heating element in the HO2S is a PTC
(positive temperature coefficient) resistor. The
heating element is supplied with battery voltage as
soon as the Powertrain Control Module relay
engages. The HO2S is earthed via the PCM. As
the heating current is high when the element is
cold, it is limited via PWM in the PCM until a certain
G1021908en2008.50 Kuga8/2011
303-14-
21
Electronic Engine Controls— 2.5L Duratec (147kW/200PS) - VI5303-14-
21
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

whereby the broadband HO2S emits a clear,
constant signal.
The broadband HO2S consists of a Nernst
concentration cell and an oxygen pump cell, which
transports the oxygen ions.
TIE42098
5
7
9
12
86
4
3
Description
Item
Nernst concentration cell
1
Oxygen pump cell
2
Measuring area
3
Pump current
4
Regulating switch
5
Reference voltage
6
Heater
7
Heating voltage
8
Reference air duct
9
Between the oxygen pump cell and the Nernst
measuring electrode, there is a diffusion gap which
acts as the measuring area and is connected to
the exhaust gas. The Nernst concentration cell is
connected via a duct with the ambient reference
air and the measuring area. It detects the mixture
composition in the measuring area. A concentration
of lambda = 1 is set in the measuring area using
the oxygen ion flow. This is done by applying a
reference voltage which results in a pump current.
When the exhaust gas is lean, the oxygen pump
cell is actuated in such a way that oxygen ions are
pumped out of the measuring area. This is detected
by the regulating switch, so that the flow can move
(positive direction).
If the exhaust gas is rich, then the current direction
is reversed, i.e. the cell pumps oxygen ions into
the measuring area. The regulating switch detects
this, so the flow is reversed (negative direction).
TIE42062
1
2
Description
Item
Pump current in mA
Ip
positive pump current
1
negative pump current
2
The pump current represents a direct measurement
of the mixture composition. With lambda 1 (14.7
kg air/1 kg fuel), the pump current is 0 mA. The
relatively small measured current is converted into
a voltage signal in the PCM using an evaluation
circuit. The heating of the broadband HO2S is
supplied with a reference voltage of 11 to 14V. The
operating temperature of the broadband HO2S is
650 - 900 °C.
The characteristic curve of the broadband HO2S
is constant (linear), without a lambda jump.
VCT (variable camshaft timing) solenoids
The camshaft adjustment solenoids are multi-way
solenoid valves that are actuated with a PWM
signal, thereby allowing the valve plungers to be
steplessly adjusted.
G1021908en2008.50 Kuga8/2011
303-14- 26
Electronic Engine Controls— 2.5L Duratec (147kW/200PS) - VI5303-14-
26
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

E112323
1
2
7
6
4
5
3
10
9
11
12
Description
Item
The TSS sensor
1
The OSS sensor
2
PWM (pulse width modulation)- solenoid
valve – TCC (torque converter clutch)
(SLU)
3
PWM solenoid valve – shift pressure (SLS)
4
Shift solenoid S1
5
Shift solenoid S4
6Description
Item
Shift solenoid S3
7
Shift solenoid S5
8
Shift solenoid S2
9
The TFT (transmission fluid temperature)
sensor
10
PWM solenoid valve for main line pressure
(SLT)
11
TCM with integrated TR sensor
12
Depending on the input signals, the TCM mounted
on the transaxle actuates the solenoid valves
S1-S5 in the valve body. The solenoid valves are
either in the "open" or "closed" state.
The (SLT and SLS) control valves regulate the
hydraulic pressure according to the pulse/pause
ratio of the electrical PWM signal. The controlled
hydraulic pressure enables smooth shifting or the
generation of a defined slip through actuation of
the relevant clutches and brakes. The shift timing is calculated by the TCM using the
accelerator pedal position and vehicle speed.
Under normal conditions, gear shifting and torque
converter lockup occur at low engine speeds to
reduce fuel consumption.
If the accelerator pedal is pressed down quickly,
the TCM switches automatically into kickdown
mode.
G1163604en2008.50 Kuga8/2011
307-01-
10
Automatic Transmission/Transaxle
— Vehicles With:
5-Speed Automatic Transaxle - AW55 AWD
307-01- 10
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL