2007 FORD FIESTA sensor

303-03B-16 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-16
DIAGNOSIS AND TESTING
Item Description
I A 1 Opening temperature I
I B I Fully open temperature I
NOTE:Generally, most thermostats maintain a
coolant temperature between
88OC (1 90°F) and
92OC (1 98OF) although dual stage electric
thermostats may increase the coolant temperature
up to
100°C (212OF) under light engine load
conditions.
The engine should start cleanly and the ECT value
will rise quite quickly with smooth progression. If
the ECT signal appears unstable or erratic, the
ECT sensor, electrical connector and wiring
harness to the PCM need to be visually inspected
for damage, chafing or water ingress.
The temperature should rise to approximately
90°C
for a thermostat that has an 88OC value. The signal
value will then fall as cooler coolant enters the
engine.
If the ECT value fails to maintain a constant value
and falls back to lower figures, typically between
60°C (140°F) and 70°C (1 50°F), the thermostat
and its sealing function within the thermostat
housing must be checked.
5, INSTALL a new thermostat housing and
thermostat housing gasket as necessary.
REFER to: Thermostat Housing (303-03 Engine
Cooling
- 2.OL Duratec-HE (M14), Removal
and Installation).
6. Carry out another road test from step 1 using
the same criteria to confirm that the concern
has been rectified.
7. Using the WDS, clear the PCM keep alive
memory (KAM) or electrically erasable
programmable read only memory (EEPROM)
so that new drive values can be learnt.
2006.0 Fiesta 1212006 G426582en
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303-03B-24 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-24
REMOVAL AND INSTALLATION
Coolant Outlet Connector
Removal
1. Remove the air cleaner.
For additional information, refer to: Air
Cleaner
- 2.OL Duratec-HE (M14) (303-12
Intake Air Distribution and Filtering,
Removal and Installation).
2. Disconnect the spark plug wires from the
ignition coil pack.
4. Remove the ignition coil pack.
5. Drain the cooling system.
For additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling
- 2.OL Duratec-HE
(M14), General Procedures).
6. Disconnect the engine coolant temperature
3. Disconnect the ignition coil pack electrical
(ECT) sensor electrical connector.
connector.
2006.0 Fiesta 1212006 G421228en
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Fuel Charging and Controls - 1.25L
Duratec-1 6V (Sigma)llI4L Duratec-1 6V
(Sigma)llI6L Duratec-1 6V (Sigma)
REMOVAL AND INSTALLATION
Fuel Charging Wiring Harness(36 437 0)
Removal
1. Remove the air cleaner. For additional
5. N0TE:lt is necessary to lift the red locking
tab before the electrical connector can be
disconnected.
information, refer to Section
303-12 [Intake the throttle body electrical Air Distribution and Filtering].
connector.
2. Disconnect the spark plug wires from the
ignition coil.
6. Disconnect the fuel charging wiring harness
electrical connector.
3. Disconnect the engine coolant temperature
(ECT) sensor electrical connector.
(
7. Remove the positive crankcase ventilation
(PCV) hose.
4. Disconnect the camshaft position (CMP)
sensor electrical connector.
2006.0 Fiesta 1212006 GI 89082en
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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-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-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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