Throttle Body

2006 Harley Vrod Iac Sensor

Figure 3-11. Loosen Throttle Body Clamps

Vrod Remove Throttle Cable

Figure 3-12. Fuel Rail/intake Seal Fasteners

REMOVAL

1. Disconnect the idle speed control (IAC) connector.

2. Disconnect the throttle position (TP) sensor.

3. See Figure 3-11. Loosen throttle body clamps.

4. Detach throttle body from rubber seals by pulling up with a gentle rocking motion. If engine is in chassis, it is not necessary to disconnect throttle cables. Move throttle body and cables aside and secure away from engine.

5. See Figure 3-12. Remove fuel rail/intake seal fasteners. Bottom nut is captured but should be held with a wrench for removal.

6. See Figure 3-13. Without disturbing the fuel rail, rotate rubber seal from under fuel rail.

7. Remove fastener holding the MAP sensor. Un-plug connector [80].

8. See Figure 3-15. Pull front injector from front intake runner.

9. With front injector free, swing fuel rail toward cam drive side and pull rear injector from rear intake runner.

10. See Figure 3-14. Unplug connector [84], front injector and connector [85], rear injector.

11. Unplug engine coolant temperature sensor connector [90] and oil pressure sending unit connector [120].

12. Unplug engine harness at connector [145].

13. Disassemble and service fuel rail and fuel injectors. See 9.9 FUEL RAIL/FUEL INJECTORS.

Figure 3-11. Loosen Throttle Body Clamps

Figure 3-12. Fuel Rail/intake Seal Fasteners

Figure 3-13. Rubber Seal
Figure 3-14. Fuel Rail with Injectors

1. Assemble fuel rail and fuel injectors. See 9.9 FUEL RAILV FUEL INJECTORS.

2. Connect engine harness at connector [145].

3. Connect engine coolant temperature sensor connector [90] and oil pressure sending unit connector [120].

4. See Figure 3-14. Connect connector [84], front injector and connector [85], rear injector on fuel rail.

5. Supporting fuel rail oriented with fuel tubes toward the left rear, push rear injector into bore in intake runner.

6. Swing fuel rail over and push front injector into intake runner in front cylinder.

7. Rotate rubber boots under fuel rail and install rubber boots over intake runners.

8. Install fasteners through fuel rail into rubber boots. Tighten to 9.7 Nm (85 in-lbs).

9. See Figure 3-16. Orient intake clamps as shown.

10. Press throttle body and cables into rubber boots.

11. See Figure 3-17. Tighten intake hose clamps (7) to 1.25 Nm (11 in-lbs).

12. See 1.19 SPARK PLUG/COIL. Install spark plugs and coils. Tighten to:

a. Tighten spark plugs to 23 Nm (17 ft-lbs).

b. Tighten coil fasteners to 9.7 Nm (85 in-lbs).

13. Attach the idle speed control (IAC) connector.

14. Attach the throttle position (TP) sensor.

15. Install right angle connectors on rigid fuel lines from fuel rail. Push until audible "click" is heard.

Figure 3-15. Front Injector

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1. Idle air control motor

2. Throttle position sensor

3. Fuel rail

4. Fuel pressure regulator

5. Fuel pressure check

6. Injector

8. Rubber boot

9. Linkage rod

Figure 3-17. Throttle Body and Fuel Rail

Harley Davidson Engine Throttle Linkage
Figure 3-16. Throttle Body Intake Clamps
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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