Idle Speed: Testing and Inspection

1. INITIAL CONDITIONS
- Engine coolant 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.

- MFI system wiring connectors fully plugged
- Ignition timing set correctly
- Transmission in neutral position

2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL
- Remove the fuse cover on the instrument panel.

DLC3 Is Located Inside Of The Fuse Panel:

- 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: 750 ± 50 rpm
(w/ Cooling fan OFF and transmission in neutral position)

- If the idle speed is not as specified, check the IAC valve and air intake system.

4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL