On Vehicle Inspection

- Check that the throttle linkage moves smoothly.

- Check the vacuum at each port.
- Start the engine.
- Check the vacuum with your finger.
2. INSPECT THROTTLE POSITION SENSOR.
- Apply vacuum to the throttle opener.
- Disconnect the sensor connector.

- Insert a thickness gauge between the throttle stop screw and stop lever.

- Using an ohmmeter, measure the resistance between each terminal.
- Reconnect the sensor connector.
3. INSPECT THROTTLE OPENER:
- Warm up engine.
- Allow the engine to warm up to normal operating temperature.
- Check idle speed.

Idle speed: 700 ± 50 rpm

- Check throttle opener setting speed.
- Disconnect the vacuum hose from the throttle opener, and plug the hose end.
- Check the throttle opener setting speed.
- Throttle opener setting speed: 900 - 1.950 rpm
- If the throttle opener setting is not as specified. replace the throttle body.
- Stop the engine.
- Reconnect the vacuum hose to the throttle opener.
- Start the engine and check that the idle speed returns to the correct speed.