Contents: Examination ⤓ Installation ⤓
Examination
1. Disconnect the connector from the throttle position sensor (Figure 8.20a).
Figure 8.20a. Disconnect the connector from the throttle position sensor
2. Measure the resistance between terminals 1 and 4 of the sensor. Normal value: 3.5-6.5 kOhm.
3. Measure the resistance between terminals 2 and 4. Slowly open the throttle valve from idle to full throttle - the resistance should decrease in direct proportion to the opening of the throttle valve.
4. If the measured value does not match the specified value or does not change proportionally and uniformly, replace the throttle position sensor.
Installation
5. Install the throttle position sensor as shown in Figure 8.20b and tighten the mounting bolts.
The original article is on MITSUBISHIMAN
Figure 8.206. Install the throttle position sensor and tighten the mounting bolts
6. Connect the diagnostic tool between terminal 1 (power supply) and terminal 2 (output) of the connector and check that the resistance increases gradually as the throttle valve is slowly opened to "full throttle" (Figure 8.20c).
Figure 8.20c. Checking the resistance between the terminals of the throttle position sensor connector
7. Check the sensor wiring connector for continuity between terminal 3 (idle air sensor) and terminal 4 (ground) when the throttle is fully open and fully closed.
Normal condition:
| Throttle position | Electrical conductivity |
| Completely closed | Yes |
| Fully open | No |
If there is no continuity with the throttle fully closed, rotate the throttle position sensor housing counterclockwise and check again.
8. If a defect is found, replace the sensor.