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
- Remove the fuse cover on the instrument panel.
- Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
Note: Scantool is used to check idle speed.

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. INSPECT IGNITION TIMING




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




- Using a timing light, check the ignition timing.

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

- Remove the SST from the DLC1. SST 09843-18020
5. FURTHER CHECK IGNITION TIMING

Ignition timing: 0 - 10° BTDC @ idle
(Transmission in neutral position)

HINT: The timing mark moves in a range between O° and 10°.

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