Ignition Timing: Adjustments

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.
- 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: 650 ± 50 rpm

5. INSPECT AND ADJUST 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: 3° BTDC @ idle
(Transmission in neutral position and A/C OFF).





- Loosen the hold-down bolt, and adjust by turning the distributor.
- Tighten the hold-down bolt, and recheck the ignition timing.

Torque: 18 Nm (13 ft lb)

- Remove the SST from the DLC1.





6. FURTHER CHECK IGNITION TIMING.

Ignition timing: 2 - 13° BTDC @ idle
(Transmission in neutral position and A/C OFF).

HINT: The timing mark moves in a range between 2° and 13°.

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