ignition FORD MUSTANG 2003 Workshop Manual

14. Lower the vehicle.
15. Disconnect the coolant reservoir electrical connector.
16. Disconnect the following connectors:
zCamshaft position (CMP) sensor
z LH radio ignition interference capacitor
17. Separate the wiring harness from the power steering reservoir bracket. Klj . 4 ba
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18. Disconnect the generator connectors:
zBattery power supply wire
z Voltage regulator
19. Disconnect the following connectors: zLH fuel injectors
z LH ignition coils
20. Disconnect the following connectors: zExhaust vacuum regulator (EVR)
z Ground wire
21. Disconnect the EGR pressure transducer electrical connector. Klj . 5 ba
142003 Mustang Workshop Manual
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10. Connect the following connectors:
zLH fuel injectors
z LH ignition coils
11. Connect the following generator connectors: zVoltage regulator
z Battery supply
12. Install the wiring harness retainers to the power steering reservoir bracket.
13. Connect the following connectors: zLH radio ignition interference capacitor
z CMP sensor 14. Connect the coolant reservoir electrical connector. Klj . 10 ba
142003 Mustang Workshop Manual
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20. Lower the vehicle.
21. Connect the 16 pin connector.
22. Connect the following connectors:
zECT sensor
z RH radio ignition interference capacitor
23. Connect the following connectors: zPCV hose
z Four fuel injectors
z Four ignition coils Klj . 12 ba
142003 Mustang Workshop Manual
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SPECIFICATIONS
SECTION 303-
04C: Fuel Charging and Controls — Cobra 4.6L (4V) 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 Battery ground bolt 10 89
Throttle body bolts 9 80
Fuel injection supply manifold bolts 10 89
42-
pin engine bulkhead electrical connector bolt 6 53
Ignition coil cover bolts 10 89
Battery supply wire nut to power distribution box 8 71
Battery supply wire nut to generator 8 71 Klj . 1 ba
12003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Fuel Charging Wiring Harness
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 can ignite. Failure to follow these instructions can result in personal injury.
1. Disconnect the battery ground cable.
2. Remove the exhaust gas recirculation (EGR) valve and the exhaust manifold to EGR valve tube. For additional information, refer to Section 303 - 08 .
3. Remove the bolts and the LH ignition coil cover.
4. Disconnect the LH ignition coil electrical connectors. 5. Disconnect the barometric pressure (BARO) sensor electrical connector. SECTION 303-
04C: Fuel Charging and Controls — Cobra 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
72003 Mustang Workshop Manual
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14. Disconnect the throttle position (TP) and the idle air control (IAC) valve electrical connectors.
15. Disconnect the accelerator cable, and if equipped, the speed control cable.
16. Remove the nuts and the throttle body spacer assembly.
17. Remove the bolts and the RH ignition coil cover.
18. Disconnect the RH ignition coil electrical connectors. Klj . 4 ba
72003 Mustang Workshop Manual
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24. Unclip the harness from the bracket.
25. Lower the vehicle.
26.
NOTE: LH side shown, RH side similar.
Disconnect the two radio ignition interference capacitor electrical connectors.
27. Disconnect the eight fuel injectors. Klj . 6 ba
72003 Mustang Workshop Manual
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SPECIFICATIONS
SECTION 303-
04D: Fuel Charging and Controls — Mach I 4.6L (4V) 2003 Mustang Workshop Manual General Specifications
Item Specification
Fluid/Lubricant Specification
Super Premium SAE 5W-30, XO-5W30-
QSP WSS-
M2C153- G
Torque Specifications Description Nm lb-
ft lb-
in Battery ground bolt 10 — 89
Throttle body bolts 9 — 80
Fuel injection supply manifold bolts 10 — 89
42 pin engine bulkhead electrical connector bolt 6 — 53
Ignition coil cover bolts 10 — 89
Battery supply wire nut to power distribution box 8 — 71
Battery supply wire nut to generator 8 — 71
Air intake scoop bolts 25 18 —
Air intake scoop bracket bolt 25 18 —
Air intake scoop bracket nuts 25 18 —
Air intake scoop bracket throttle body nut 9 — 80
Exhaust gas recirculation (EGR) vacuum regulator solenoid bolts 10 — 89
Wiring harness bracket bolt 20 15 — Klj . 1 ba
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Item Part
Number Description
1 — Engine control sensor wiring 42 pin electrical
connector
2 — 16 pin electrical connector
3 — Engine control jumper harness electrical connector
4 — RH heated oxygen sensor (HO2S) electrical
connector
5 — Transmission main control harness electrical
connector.
6 — Fuel injector electrical connectors
7 — Heated positive crankcase ventilation (PCV) valve
electrical connector.
8 — Radio ignition interference capacitor electrical
connector
9 — Ignition coil electrical connectors
10 — Generator battery electrical connector
11 — Generator field electrical connector
12 — Engine coolant temperature (ECT) sensor
electrical connector
13 — Fuel pressure sensor electrical connector
14 — Exhaust vacuum regulator (EVR) electrical
connector
15 — Idle air control (IAC) electrical connector
16 — EGR backpressure transducer electrical connector
17 — Power distribution box battery feed electrical wire
18 — Camshaft position (CMP) sensor electrical
connector Klj . 2 ba
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