evap FORD KUGA 2011 1.G Workshop Manual

Evaporator Core Orifice
Special Tool(s)
412-027
Disconnect Tool, Spring Lock
Coupling (1/2" blue) 412-034
Remover/Installer, Evaporator
Core Orifice Special Tool(s)
412-034-01
Adapter for 412-034 412-035
Remover, Damaged
Evaporator Core Orifice
Materials
Specification
Name
WSH-M1C231-B /
6U7J-M1C231-AA
Compressor Oil - Air
Conditioning
Removal
NOTE: Removal steps in this procedure may
contain installation details. 1.
Refer to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging (412-00
Climate Control System - General Information,
General Procedures).
2. Refer to: Cowl Panel Grille (501-02 Front End
Body Panels, Removal and Installation).
3. G1071472en
2008.50 Kuga 8/2011 412-01-65
Climate Control
412-01-65
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SECTION 303-13 Evaporative Emissions
VEHICLE APPLICATION:2008.50 Kuga
PA G E
CONTENTS
DIAGNOSIS AND TESTING
303-13-2
Evaporative Emissions ........................................................................\
...............................
303-13-2
Inspection and Verification ........................................................................\
..........................
303-13-1
Evaporative Emissions
303-13- 1
.
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Evaporative Emissions
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanicalor electrical damage.
Visual Inspection Chart
Electrical
Mechanical
– Fuse(s)
– Wiring harness
– Electricalconnector(s)
– Vacuum line(s)
– Evaporative emis-
sion canister
– Evaporative emis- sion system hose(s)
– Evaporative emis- sion canister purge
valve
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 diagnostic tab within
the Ford approved diagnostic tool.
G165592en2008.50 Kuga8/2011
303-13- 2
Evaporative Emissions
303-13- 2
DIAGNOSIS AND TESTING
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Description
Item
CMP (camshaft position) sensor
Comments:One each for the inlet and outlet
camshaft
6
EVAP (evaporative emission) valve
7
CKP (crankshaft position) sensor
8Description
Item
MAF (mass air flow) sensor
9
PCM (powertrain control module)
10
Fan control module
11
MAPT (manifold absolute pressure and
temperature) sensor
12
E96950
1
23
4
56
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DESCRIPTION AND OPERATION
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Description
Item
Catalyst monitor sensor
1
Fuel pressure/fuel temperature sensor
2
Throttle control unit
3
Ambient air temperature sensor
4Description
Item
MAPT sensor
5
KS (knock sensor)
Comments:Two, on 2nd and 4th cylinder
6
E96980
1
234
Description
Item
EVAP valve
1
Wastegate control valve
2Description
Item
Turbo boost pressure controller
3
HO2S (heated oxygen sensor)
4
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DESCRIPTION AND OPERATION
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Powertrain Control Module (PCM)
E65160
The PCM communicates with all engine sensors
and the other modules. Communication of the PCM
with the other modules and the system diagnostics
takes place via the CAN (controller area network)
data bus.
The following functions are regulated or controlled
by the PCM:
• Fuel supply to the engine including lambdacontrol
• Ignition setting including knock control
• Idle speed control
• Control of optimum valve timing via the camshaft adjustment for intake and exhaust camshafts
• The refrigerant compressor is controlled by the air conditioning clutch relay and the delivery of
the refrigerant compressor is controlled by a
PWM (pulse width modulation) signal.
• Control of EVAP purge valve
• Boost pressure control
• Control of the cooling fan
• Charging system (Smart Charge)
• Starting system (Smart Start)
If the PCM is isolated from the vehicle electrical
system or the battery is disconnected, the throttle
control unit mustbe initialized.
The PCM is fitted in the engine compartment in the
air filter housing. On right hand drive vehicles a
protective metal plate is also installed to prevent
the plug connector from being pulled off, or make
it harder to pull off, in case of theft. The protective
plate is secured with a shear bolt. The shear bolt
needs to be drilled out in order to remove the
protective plate.
Knock Sensor
E96986
Two KSs are fitted. They are on the cylinder block,
one close to the 2nd cylinder and one close to the
4th cylinder.
When fitting, adhere strictly to the specified
tightening torque, otherwise the KS will not work
properly.
If the signal from one or both KS is implausible or
absent, knock control is deactivated. The PCM
switches to an ignition map that is further away
from the knock limit. As a result, engine damage
caused by combustion knock is avoided. If a fault
occurs, a fault code is stored in the error memory
of the PCM.
Camshaft Position (CMP) Sensor
E89993
If one or both CMP sensors fail, a fault is saved in
the error memory of the PCM and the camshaft
adjustment and knock control are deactivated.
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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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• Starting process
• Engine running– Fuel supply to the engine including lambdacontrol
– Ignition setting including knock control
– Idle speed control
– Boost pressure control
– Valve timing via the camshaft adjuster for the intake and exhaust camshafts (including
internal exhaust gas recirculation)
• Refrigerant compressor (activation, deactivation and delivery)
• EVAP purge valve
• Charging system
Fuel is supplied to the engine via a sequential
multi-point injection system. Ignition is performed
by a distributor-less ignition system with one
ignition coil unit for each cylinder.
The PCM optimizes engine power and emissions
at all times by processing the sensor signals and
information received via the CAN databus and
using these for open or closed loop control of the
different variables.
The PCM contains part of the PATS (passive
anti-theft system).
The PCM is supplied with battery voltage via a fuse
in the BJB (battery junction box). This power supply
is needed to ensure that saved data is not lost
when the engine is switched off.
For other power supply requirements, the PCM
switches on a relay in the BJB which is responsible
for supplying power to the PCM and to some
sensors and actuators. Each of these are protected
by fuses in the BJB.
To guarantee optimum engine running at all times,
the PCM has several adaptive (self-learning)
functions. These adapt the output signals to
changing circumstances, such as wear or system
faults.
In some cases a faulty signal is replaced with a
substitute value or limited. A substitute value can
be calculated from other signals or it can be
predefined by the PCM. The substitute value allows
the vehicle to keep on running without the emission
values changing unduly. Depending on the signal
failure, the PCM operates in emergency mode. In
this mode, the engine power and/or the engine
speed is reduced to prevent further damage.
Depending on the faulty signal, a fault code is
stored in the error memory of the PCM. These can be read out using IDS (Integrated Diagnostic
System) via the DLC.
The PCM processes and evaluates the signals
from the sensors. The following sensors send
signals to the PCM:
• CMP sensors
• CKP sensor
• MAF sensor
•KS
• ECT sensor
• TP sensor
• APP sensor
• Broadband HO2S
• Catalyst monitor sensor
• MAPT sensor
• Air conditioning (A/C) pressure sensor
• Alternator
• Fuel temperature and fuel pressure sensor
• Engine oil level, temperature and quality sensor
• Outside air temperature sensor
The following components receive signals from the
PCM:
• Powertrain Control Module relay
• A/C clutch relay
• injectors
• Direct ignition coils
• Cooling fan module
• Throttle control unit
• Camshaft adjuster solenoid valve
• Starter Relay
• EVAP purge valve
• Alternator
• Heating element - broadband HO2S
• Catalyst monitor sensor heating element
• FPDM
• Wastegate control valve
• Air conditioning compressor
The PCM receives the following signals via the
CAN databus:
• APP
•CPP
• BPP
• Vehicle speed.
• Refrigerant compressor request
• PAT S
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DESCRIPTION AND OPERATION
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current value is reached. The PCM then
permanently connects the heating element to earth.
The catalyst monitor sensor is used by the PCM
to measure the oxygen content in the exhaust gas
in the TWC. If all the conditions for catalyst
diagnostics are met, based on this information the
PCM can check that the TWC is working
satisfactorily. The information is also used to
improve the air/fuel mixture adjustment.
The catalyst monitor sensor is similar in function
to an HO2S. The signal transmitted by the catalyst
monitor sensor changes sharply if the oxygen
content in the exhaust gas changes. For this
reason, catalyst monitor sensors are also called
"jump lambda sensors".
Fuel tank purging
The EVAP purge valve is only actuated by the PCM
if the coolant temperature is at least 60°C.
Actuation is done ground side by means of a PWM
signal. This makes it possible to have the full range
of opening widths, from fully closed to fully open.
The PCM determines from the operating conditions
when and how wide to open the EVAP tank purge
valve. If the EVAP purge valve is opened, the
engine sucks in ambient air through the activated
charcoal in the evaporative emission canister as
a result of the vacuum in the intake manifold. In
this way the adsorbed hydrocarbons are led to the
combustion chamber of the engine.
The EVAP tank purge valve is not actuated and
system cleaning is interrupted if the engine
switches to idle and/or a closed-loop control
process is initiated.
Power (battery voltage) is supplied via the
Powertrain Control Module relay in the BJB. The
solenoid coil resistance is between 17 and 24 ohms
at 20°C.
Engine speed control
The APP sensor provides the PCM with information
about the driver's request for acceleration.
The throttle control unit receives a corresponding
input signal from the PCM. An electric motor then
moves the throttle valve shaft by means of a set
of gears. The position of the throttle is continuously
recorded by the TP sensor. Information on throttle
position is processed and monitored by the PCM.
The TP sensor comprises two potentiometers.
These work in opposite ways to each other. In one
potentiometer, the resistance increases when the
throttle is opened, in the other it decreases. Thisallows the operation of the potentiometers to be
checked. The signal from the TP sensor is
amplified in the lower range (idle to a quarter open)
by the PCM to enable more precise control of the
throttle in this range. This is necessary because
the engine is very sensitive to changes in throttle
angle in this throttle opening range.
With the throttle valve position kept constant, the
ignition angle and the injected fuel quantity are
then varied to meet the torque demands.
Depending on the operating state of the engine, a
change in the position of the throttle flap may not
be necessary when the APP sensor changes.
If a fault develops in the throttle control unit, a
standby function is executed. This standby function
allows a slight opening of the throttle flap, so that
enough air passes through to allow limited engine
operation. For this purpose, there is a throttle flap
adjustment screw on the throttle housing. The
return spring closes the throttle flap until the stop
of the toothed segment touches the stop screw. In
this way a defined throttle flap gap is formed for
limp home mode.
The stop screw has a spring loaded pin, which
holds the throttle flap open for limp home mode.
In normal operating mode, this spring loaded pin
is pushed in by the force of the electric motor when
the throttle flap must be closed past the limp home
position (e.g. for idle speed control or overrun
shutoff).
Oil monitoring
The engine does not have an oil pressure
switch.
The oil level and oil quality are calculated.
Calculating the engine oil level
The oil level is determined by continuous
measurement of the capacitance (i.e. the ability to
store an electrical charge) between the two
capacitive elements of the engine oil
level/temperature/quality sensor. The different oil
levels cause the capacitance between the elements
to change. The data are recorded by the PCM and
converted into an oil level value. Temporary
fluctuations in oil level are automatically filtered out
by the PCM.
Calculating oil quality
The PCM calculates the oil quality from the oil level
measurement and the oil temperature measured
by the sensor, plus the engine speed and the
average fuel consumption. The driver is informed
about when an oil change is due.
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Fuel Tank and Lines — 2.5L Duratec (147kW/200PS) - VI5 –Component Location
E105870
1
2
3
4
5
6
7
8
10
9
11
Description
Item
Fuel pump and level indicator module,
right-hand side
1
EVAP (evaporative emission) extraction
points
2
Fuel pump and lines for the fuel-fired
booster heater/additional heater
3Description
Item
Fuel-filler pipe
4
EVAP container and lines
5
Vent hose, fuel filler pipe
6
Fuel pump and level indicator module,
left-hand side
7
Fuel tank
8
G1079157en2008.50 Kuga8/2011
310-01- 2
Fuel Tank and Lines
310-01- 2
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