Idle Speed: Testing and Inspection

1. Initial conditions.
- Engine at normal operating temperature
- Air cleaner installed
- All pipes and hoses of air induction system connected
- All accessories switched OFF
- All vacuum lines properly connected

HINT: All vacuum hoses for EGR system. etc. should be properly connected.

- SFI system wiring connectors fully plugged
- Ignition timing check correctly
- Transmission in neutral position

Toyota Hand-Held Tester Connection:

2. Connect TOYOTA hand-held tester or OBD II scan tool.
3. Inspect idle speed.
- Race the engine speed at 2,500 rpm for approx. 90 seconds.
- Check the idle speed.

Idle speed: 700 ± 50 rpm

- If the idle speed is not as specified, check the IAC valve.

4. Disconnect TOYOTA hand-held tester or OBD II scan tool.