2. Turn on the ignition and, using a voltmeter with probes, check the voltage between each clamp and ground. See the figure. There should be 0.4 to 0.6 volts at terminal A, less than 1.5 volts at terminal B, 4.5 to 5.5 volts at terminal C, and less than 1.5 volts at terminal B.
3. Open the throttle fully and repeat the test. There should be approximately 4.5 volts at terminal A and approximately 12 volts at terminal D. Terminals B and C should have the same voltage as given in step 55.
4. If the voltage is incorrect only at terminal D, check the throttle position sensor installation as described in steps 6-8. If the other terminal voltages are incorrect, check the resistance as described in step 8.
5. Turn off the ignition and install the rubber boot.
6. To adjust the throttle position sensor, first disconnect the wiring connector.
7. Insert a 0.2mm feeler gauge between the throttle lever and the adjustment screw, then use an ohmmeter to check the continuity between terminals D and B on the sensor. When the 0.5 mm probe is inserted, there should be no contact between the clamps.
8. If necessary, adjust the position of the sensor to obtain correct results.
9. Before installing the connector, use an ohmmeter to check the clamp resistance. With the throttle closed, the resistance between terminals A and B should be approximately 500 ohms, but with the throttle open, it should be approximately 4,500 ohms. Between terminals B and C, the resistance should be 4,000-6,000 ohms, regardless of the throttle position. Replace the sensor if the data is incorrect.
EGI Throttle Position Sensor Connector Clips |
Adjusting the EGI throttle sensor |