fuel pump FORD KUGA 2011 1.G User Guide

9. Install the ignition coil-on-plug.REFER to: Ignition Coil-On-Plug (303-07 Engine
Ignition - 2.5L Duratec (147kW/200PS) - VI5,
Removal and Installation).
TIE44609
10. Install the fuel pump relay and close the CJB.
TIE44608
11. Install the CJB cover.
Measure the compression pressure
(Engine - 2.0L Duratorq-TDCi (DW)
Diesel)
WARNINGS:
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.
Do not carry out any repairs to the fuel
injection system without checking that the
fuel pressure has dropped to zero and that
the fuel temperature has either reached
ambient temperature or is below 30°C,
whichever is the greater. Failure to follow
these instructions may result in personal
injury.
1. Using datalogger in the Ford diagnostic
equipment , check that the fuel pressure has
dropped to zero and that the fuel temperature
has either reached ambient temperature or is
below 30°C, whichever is the greater.
2. Raise and support the vehicle.
REFER to: Lifting(100-02 Jacking and Lifting,
Description and Operation).
VFE0035742
3. Remove the engine undershield.
VFE0035752
4. Remove the radiator undershield.
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TIE44583
5. Remove the glow plug relay.
6. Lower the vehicle.
7. Remove the cowl panel grille.REFER to: Cowl Panel Grille (501-02 Front End
Body Panels, Removal and Installation).
E50527
8. NOTE: The engine upper cover is held in place by 3 ball clips. The ball clips are not
vertical, but are angled backwards by
approximately 20 degrees.
Location of the engine upper cover ball clips.
E50472
2
1
3
4
9.CAUTION: Contact of the engine upper
cover with the cowl panel may cause damage
(scratches) on the engine upper cover. If the
ambient temperature is below 0°C, detach
the engine upper cover with extreme caution. Failure to follow this instruction may cause
the engine upper cover to be damaged.
NOTE: Only remove and install the engine upper
cover in the sequence shown.
Remove the engine upper cover.• Detach the engine upper cover ball clips in the sequence shown.
TIE39594
10.CAUTION: Do not disconnect the fuel
injection pump electrical connectors and
crank the engine.
Disconnect the fuel injector electrical
connectors.
11. Remove the exhaust gas recirculation (EGR) cooler.
12. Remove the EGR valve.
TIE39687
13. Remove the glow plug power supply.
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Action
Possible Sources
Symptom
• INSPECT the fuel lines.INSTALL new components as
necessary. TEST the system
for normal operation.
• Fuel lines damaged or blocked.
• INSTALL a new fuel filter.
• Fuel filter blocked.
• REFER to:Fuel Pump and
Sender Unit - 2.5L Duratec
(147kW/200PS) - VI5 (310-01
Fuel Tank and Lines,
Removal and Installation).
• Fuel pump and sender unit.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• Crankshaft position (CKP)
sensor.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• Camshaft position (CMP)
sensor.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
•PCM.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• Fuel rail fuel pressure 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 injectors.
• CHECK the valve timing.REFER to: Timing Belt (303-01
Engine - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• Incorrect valve timing.
• TEST the cylinder compres-sion.
REFER to: Engine(303-00
Engine System - General
Information, Diagnosis and
Testing).
• Low cylinder compression.
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Action
Possible Sources
Symptom
• CHECK the valve timing.REFER to: Timing Belt (303-01
Engine - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• Incorrect valve timing.
• REMOVE the cylinder head.INSPECT the cylinder head
and pistons for signs carbon
build up.
REFER to: Cylinder Head (303-
01 Engine - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• Excessive carbon build up.
• INSPECT the engine compon-ents.
• Worn or damaged oil pump.
• Worn or damaged timing chain
or sprocket.
• Major mechanical engine failure.
• Carry out a full enginediagnosis using the guided
diagnostic menu in the Ford
diagnostic equipment.
• KS.
• Engine knock during accelera-
tion
• 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 injectors.
• REFER to:Engine(303-00
Engine System - General
Information, Diagnosis and
Testing).
• Major mechanical engine
failure.
• CHECK the braking system.REFER to: Brake System (206-
00 Brake System - General
Information, Diagnosis and
Testing).
• Brakes binding.
• Excessive fuel consumption
• ADVISE the customer aboutthe effects of overloading the
vehicle and wind resistance on
the fuel consumption.
• Vehicle overloaded, or
excessive wind resistance (roof
racks, towing etc).
• INSTALL a new air cleanerelement.
• Air cleaner element blocked.
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— 2.5L Duratec (147kW/200PS) -
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Turbocharger
Special Tool(s) / General EquipmentHand Vacuum/Pressure
Pump
416 - D001 (23 - 036A)
23036A
Fuel Pressure Gauge
310-053 (23-046)
23046
Ford diagnostic equipment
Inspection and Verification
NOTE:It is normal for a small amount of
combustion gas to pass into the crankcase. This
gas is scavenged into the air intake system through
the positive crankcase ventilation (PCV) system,
which incorporates an crankcase vent oil separator.
Some engine oil, in the form of a vapor is carried
into the air intake system with the blow-by gases
(this engine oil also contributes to valve seat
durability). This means that oil will collect inside
the air intake components and the turbocharger.
This is not an indication that the turbocharger oil
seal has failed. The turbocharger oil seal will not
fail unless the bearings fail first, which will cause
the turbocharger to become noisy or seize. Do not
install a new turbocharger due to oil inside the
turbocharger or the air intake components. If a leak
is detected in the oil supply or return tubes or connections, locate and rectify the source. Do not
install a new turbocharger due to an oil leak.
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
Visual Inspection Chart
Electrical
Mechanical
• Wiring harness
• Boost controlsolenoid valve
• Powertrain control module (PCM)
• Oil leak(s)
• Air cleaner element
• Air cleaner outlet
pipe
• Air cleaner intake pipe
• Turbocharger oil supply or oil return
tube
• Turbocharger intake pipe
• Turbocharger vacuum diaphragm
unit
• Turbocharger housing
• Charge air cooler
• Charge air cooler intake pipe and
hose(s)
• Charge air cooler outlet pipe and
hose(s)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
NOTE: The vacuum diaphragm unit is a fixed part of the turbocharger and cannot be adjusted or renewed.
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—
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E96981
1
2
Description
Item
FPDM (fuel pump driver module)
1
Fuel pump
2
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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:
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• Torque reduction request (stability assistmodule)
• Cruise control request
The PCM sends the following signals via the CAN
databus:
• Fuel pump relay on/off
• Engine speed
• Warning lights on/off (MIL (malfunction indicator lamp), battery warning lamp)
• PAT S
•ECT
• Air conditioning pressure transducer
• Outside air temperature
With the aid of the input and output signals listed
above, the PCM controls / regulates engine
starting, fuel injection and fuel pressure, ignition,
boost pressure, camshaft adjustment, tank purging,
the radiator fan and the refrigerant compressor.
Speed and TDC recording
The CKP uses the PCM sensor to record engine
speed and detect 1st cylinder TDC (top dead
center). An additional sensor wheel for the CKP sensor is
located on the flywheel. This has 60-2 teeth. The
gaps between the teeth are required for detection
of TDC. The CKP sensor works according to the
induction principle and generates a sinusoidal
signal voltage whose level and frequency are
speed-dependent.
From the frequency of the signal the PCM
calculates the engine speed. Each time the engine
rotates, the double gap in the sensor wheel alters
the sinusoidal oscillation that is generated; this
helps the PCM to detect the TDC position of
cylinder 1.
The signal from the CKP sensor is used to
determine
• the crankshaft position,
• the engine speed,
• the ignition timing,
• the injection timing and
• the adjustment angle of the VVT units.
2
3
4
1
9
7
8
6
5
2
3
4
1
9
7
8
6
5
E96631
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than to a change in the throttle valve position. The
ignition timing also changes much more quickly.
To keep the ignition point as close as possible to
the knock limit and so optimize the efficiency of the
engine, two KS are installed in the engine, which
pick up the mechanical vibrations of the engine
and convert them into an electrical signal for the
PCM.
TIE42093
1
2
A
B1
2
Description
Item
Normal combustion
A
Knocking combustion
B
Pressure characteristic in cylinder
1
Output signal from KS
2
The term "knocking" is used to describe
combustion processes in which the flame front
propagation speed reaches the speed of sound.
This can happen towards the end of combustion
in particular, when unburnt air/fuel mixture on the
combustion chamber walls self-ignites due to the
increase in pressure following initiation of regular
combustion. The resulting pressure peaks damage
the pistons, cylinder head gasket and cylinder
head.
The cylinder in which combustion knock is
occurring is identified from the camshaft position (CMP sensors) and crankshaft position (CKP
sensor) information.
If the PCM detects combustion knock, the ignition
timing for the cylinder in question is gradually
retarded for a few crankshaft revolutions until
combustion knock stops. After that the ignition point
is slowly returned to the calculated value. This
facilitates individual cylinder ignition, which makes
it possible for the engine to operate at optimum
efficiency at the knock limit.
Engine fueling
Fuel is supplied by a non-return fuel system.
Fuel pressure and fuel delivery rate are regulated
by the PCM with the aid of the FPDM. The fuel
pump is supplied with a cycled voltage by the
FPDM. By cycling the voltage, the fuel pump output
can be steplessly adjusted. The fuel pressure can
be steplessly regulated between 3 and 5 bar.
Adjusting the fuel pump output has the following
advantages:
• The fuel pump's power consumption is reduced,
thereby reducing the load on the vehicle's power
supply system.
• The fuel pump's service life is increased.
• Fuel pump noise is reduced.
Fuel pressure regulator
The PCM calculates the required fuel pressure
based on the operating conditions. The PCM
transmits a corresponding PWM signal to the
FPDM. With the aid of this signal, the FPDM
actuates the pump by sending, in turn, a PWM
signal to the ground connection of the fuel pump.
The fuel pump can be steplessly regulated by
varying the pulse width of the PWM signal.
The PCM continuously monitors the fuel pressure
in the fuel rail by means of the fuel temperature/fuel
pressure sensor. If the pressure deviates from the
calculated value, the PCM adapts the PWM signal
to the FPDM accordingly. Thus the fuel pressure
levels out at approx. 4 bar.
For safety reasons, the PCM switches off fuel
delivery if the SRS (supplemental restraint system)
module detects a crash.
Regulation of injected fuel quantity
The electromagnetically controlled injectors dose
and atomize the fuel. The quantity of injected fuel
is regulated by the duration of actuation of the fuel
injectors. The fuel injectors are either closed (not
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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
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