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: (with EGR): All vacuum hoses for EGR system, etc. should be properly connected.

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

2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL.





- Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
- Please refer to the TOYOTA hand-held tester or OBD II scan tool operator's manual for further details.

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 Idle Air Control (IAC) valve and air intake system.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL.