2003 FORD MUSTANG charging

8. Remove the ten bolts in the sequence shown and raise the lower intake manifold slightly.
9. Disconnect the fuel charging wiring harness from the rear of the lower intake manifold and
remove the manifold.
10. Remove the intake manifold gaskets. zClean and inspect the sealing surfaces.
Installation 1. Install the lower intake manifold gaskets. Klj . 2 ba
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2. Connect the fuel charging wiring harness to the rear of the lower intake manifold and install the
manifold.
3. Install the intake manifold fasteners and tighten in the sequence shown.
4. Position the fuel charging wiring harness and connect it to the fuel injection supply manifold in three places.
5. Connect the eight fuel injector electrical connectors. Klj . 3 ba
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54. Connect the fuel charging wiring harness.
55. Connect the 16-
pin and the 42-pin connectors.
56. Connect the evaporative emissions return tube. 57. Position the cables, and install the bolts. Klj . 15 ba
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SPECIFICATIONS
SECTION 303-
04A: Fuel Charging and Controls — 3.8L 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricants and Chemicals
SAE 5W-
20 Premium Synthetic Blend Motor Oil XO-5W20- QSP WSS-
M2C153- H
Torque Specifications Description Nm lb-
in Throttle body nuts and bolts 9 80
Fuel injection supply manifold bolts 10 89
42-
pin engine bulkhead electrical connector bolt 6 53 Klj . 1 ba
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DESCRIPTION AND OPERATION
Fuel Charging And Controls
The fuel injection supply manifold (9F792):
zdelivers fuel to the fuel injector.
z receives fuel from the fuel supply line.
The throttle body (9E926):
zcontrols air supply to the upper intake manifold (9424) by positioning the throttle plate.
z connects the accelerator cable (9A758) and, if equipped, the speed control actuator cable
(9A825) to the throttle lever.
z is not adjustable.
z cannot be cleaned.
The fuel injector (9F593):
zis electrically operated by the powertrain control module (PCM) (12A650).
z has an internal solenoid that opens a needle valve to inject fuel into the lower intake manifold.
z atomizes the fuel as the fuel is delivered.
z is deposit- resistant. Do not clean.
The fuel pressure relief valve (9H321):
zis used to inspect and relieve fuel pressure.
SECTION 303-
04A: Fuel Charging and Controls — 3.8L 2003 Mustang Workshop Manual Klj . 1 ba
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DIAGNOSIS AND TESTING
Fuel Charging And Controls
Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
SECTION 303-
04A: Fuel Charging and Controls — 3.8L 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
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GENERAL PROCEDURES
Idle Speed Adjustment
Powertrain Control/Emissions Diagnosis (PC/ED) manual
SECTION 303-
04A: Fuel Charging and Controls — 3.8L 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Throttle Body
Removal and Installation
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 ignite. Failure to follow these instructions may result in personal injury.
CAUTION: The throttle body bore and plate area have a special coating and cannot be
cleaned.
1. Remove the air cleaner outlet tube (9B659). For additional information, refer to Section 303 - 12 .
2. Disconnect the throttle position (TP) sensor electrical connector.
3. Disconnect the accelerator cable (9A758) and (if equipped) the speed control actuator cable (9A825).
4. NOTE: Discard the throttle body gasket after removing the throttle body.
Remove the throttle body. zRemove the nuts.
z Remove the bolts.
SECTION 303-
04A: Fuel Charging and Controls — 3.8L 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
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