Ignition Timing: Testing and Inspection

1. WARM UP ENGINE.
- Allow the engine to warm up to normal operating temperature.
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. CONNECT TIMING LIGHT TO ENGINE.
4. CHECK IDLE SPEED.
- Race the engine speed at 2,500 rpm for approx. 90 seconds.
- Check the idle speed.

Idle speed: 700+_ 50 rpm

5. INSPECT IGNITION TIMING.





- Using SST 09843-18020 or equivalent, connect terminals TE1 and E1 of the DLC1.





- Using a timing light, check the ignition timing.

Ignition timing: 8 - 12° BTDC @ idle
(Transmission in neutral)

- Remove the SST from the DLC 1.

6. FURTHER CHECK IGNITION TIMING.

Ignition timing:12.5 - 22° BTDC @ idle
(Transmission in neutral)

HINT: The timing mark moves in a range between 12.5° and 22°.

7. DISCONNECT TIMING LIGHT FROM ENGINE.
6. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL.