Controlled Idle Speed

1. The vehicle should be prepared as follows before the inspection.

- Engine coolant temperature: 85-95°C (185-205°F)
- Lights, electric cooling fan and accessories: OFF
- Transaxle: Neutral (P for vehicles with an automatic transaxle)

Note: With vehicles for Canada, the headlights and taillights, etc. remain on even when the lighting switch is turned OFF, but this causes no problems during inspection.

2. Connect a tachometer.

Note: The tachometer reading is half the actual engine rpm--actual engine rpm is twice the indicated value.

3. Set a timing light in position.
4. Ground the terminal for adjustment of ignition timing.
5. Start the engine and let it idle.
6. Check whether or not the ignition timing is the standard value; if not, adjust.

Standard value: 5°BTDC +/- 2°

7. Stop grounding the terminal for adjustment of ignition timing.
8. Let the engine idle for two minutes.
9. Check the idling rpm.

Curb idle speed: 750 +/- 100 rpm

Note: The idling rpm is automatically regulated by the idle-speed control system.

10. If not within the standard value range, refer to Diagnosis by Symptom and check the MFI component.