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Home >> Mitsubishi >> 1999 >> 3000GT V6-3.0L SOHC >> Repair and Diagnosis >> Powertrain Management >> Fuel Delivery and Air Induction >> Throttle Body >> Service and Repair >> Disassembly and Assembly

Disassembly and Assembly




COMPONENTS

DISASSEMBLY STEPS
1. Dash pot

1. Do not disassemble the sensor and motor.
2. Do not clean the sensor and motor by dipping them into cleaning solvent. Clean them with shop towel.

2. Throttle position sensor

1. Do not disassemble the sensor and motor.
2. Do not clean the sensor and motor by dipping them into cleaning solvent. Clean them with shop towel.

3. Idle air control motor
4. O-ring
5. Fast idle air valve
6. O-ring
7. Throttle body

1. Do not remove the throttle valve.
2. Check ii the vacuum port or passage is clogged. Use compressed air to clean the vacuum passage.

8. Fixed SAS
9. Cap
10. Speed adjusting screw
11. O-ring

NOTE:
1. The fixed SAS and the speed adjusting screw are correctly adjusted at the factory and should not be removed.
2. If the fixed SAS should happen to have been removed, carry out fixed SAS adjustment.
3. If the speed adjusting screw should happen to have been removed, carry out speed adjusting screw adjustment.

REASSEMBLY STEPS
1. Dash pot
2. Throttle position sensor




1. Install the throttle position sensor to the throttle body as shown in the illustration.




2. Turn the throttle position sensor 900 clockwise to set it, and tighten the screws.




3. Connect a circuit tester between 4 (ground) and 2 (output), or between 2 (output) and 1 (power). Then, make sure that the resistance changes smoothly when the throttle valve is slowly moved to the fully open position.
4. Check for continuity between terminals 3 (closed throttle position switch) and 4 (ground) with the throttle valve both fully closed and fully open.




If there is no continuity with the throttle valve fully closed, turn TPS counterclockwise, and then check again.

NOTE: Some throttle position sensors are not provided with the position switch. In that case, the check described in step 4 cannot be accomplished.

5. If the above specifications are not met, replace TPS.

3. Idle air control motor
4. O-ring
5. Fast idle air valve
6. O-ring
7. Throttle body
8. Fixed SAS
9. Cap
10. Speed adjusting screw
11. O-ring

NOTE:
1. The fixed SAS and the speed adjusting screw are correctly adjusted at the factory and should not be removed.
2. If the fixed SAS should happen to have been removed, carry out fixed SAS adjustment.
3. If the speed adjusting screw should happen to have been removed, carry out speed adjusting screw adjustment.


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