FORD MUSTANG 2003 Workshop Manual

REMOVAL AND INSTALLATION
Mass Air Flow (MAF) Sensor —
Mach I
Removal
CAUTION: The mass air flow (MAF) sensor hot wire sensing element and housing are
calibrated as a unit and must be repaired as a complete assembly. Do not damage the sensing
element (internal to housing) or possible failure to the mass air flow sensor may occur
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Remove the air cleaner outlet tube. For additional information, refer to Section 303 - 12 .
3. Remove the mass air flow sensor (MAF). zDisconnect the connector.
z Remove the four nuts and the MAF sensor.
Installation 1. To install, reverse the removal procedure.
SECTION 303-
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REMOVAL AND INSTALLATION
Heated Oxygen Sensor (HO2S)
Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
3. NOTE: Two heated oxygen sensors (HO2S) are used for the engine control system. They are
located in the dual converter Y pipe. The left side (HO2S) is shown, the right side is similar.
Disconnect the HO2S electrical connector.
4. NOTE: If necessary, lubricate the heated oxygen sensors with penetrating and lock lubricant to
assist in removal.
Using the special tool, remove the HO2S from the dual converter Y pipe.
5. To install, reverse the removal procedure.
SECTION 303-
14: Electronic Engine Controls 2003 Mustang Workshop Manual Special Tool(s)
Socket, Exhaust Gas Oxygen
Sensor
303-
476 (T94P-9472- A)
Material Item Specification
Penetrating and Lock Lubricant
or equivalent E8AZ-
19A501-
B Klj . 1 ba
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REMOVAL AND INSTALLATION
Catalyst Monitor Sensor
Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
3. NOTE: Two catalyst monitor sensors are used for the engine control system. They are located
in the dual converter Y pipe downstream from the catalyst. The left side catalyst monitor sensor
is shown, the right side is similar.
Disconnect the connector.
4. NOTE: If necessary, lubricate the sensors with penetrating and lock lubricant to assist in
removal.
Using the special tool, remove the catalyst monitor sensors from the dual converter Y pipe.
SECTION 303-
14: Electronic Engine Controls 2003 Mustang Workshop Manual Special Tool(s)
Socket, Exhaust Gas Oxygen
Sensor
303-
476 (T94P-9472- A)
Material Item Specification
Penetrating and Lock Lubricant
or equivalent E8AZ-
19A501-
B Klj . 1 ba
22003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

5. To install, reverse the removal procedure. Klj . 2 ba
22003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Clutch Pedal Position (CPP) Switch
Removal
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Disconnect the connector.
3. Remove the bolt and the clutch pedal position (CPP) switch.
Installation 1. To install, reverse the removal procedure.
SECTION 303-
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22003 Mustang Workshop Manual
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Klj . 2 ba
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REMOVAL AND INSTALLATION
Fuel Pressure Sensor
Removal
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel related components. Highly flammable mixtures are always present
and may be ignited. Failure to follow these instructions may result in personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before working on or disconnecting any of the fuel lines or fuel system
components, the fuel system pressure must be relieved. Failure to follow these instructions
may result in personal injury.
Mach I
1. Remove the air intake scoop. For additional information, refer to Section 303 - 12 .
All engines 2. Relieve the fuel pressure. For additional information, refer to Section 310 - 00 .
3. NOTE: The 4.6L (4V) Cobra engine is shown, the other engines are similar.
Disconnect the connector and the vacuum line. 4. Remove the bolts and the sensor. SECTION 303-
14: Electronic Engine Controls 2003 Mustang Workshop Manual Material
Item Specification
Super Premium SAE 5W-20
Motor Oil
XO- 5W20- DSP or equivalent WSS-
M2C914-
A Klj . 1 ba
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Installation
1. Inspect the O- rings, and install new O- rings if necessary.
2. NOTE: Lubricate the new O- rings with clean engine oil to aid installation.
To install, reverse the removal procedure. Klj . 2 ba
22003 Mustang Workshop Manual
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