Ignition Timing: Testing and Inspection
INSPECTION1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL
a) Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
b) Please refer to the TOYOTA hand-held tester or OBD II scan tool operator's for further details.
3. CHECK IDLE SPEED
4. CONNECT TIMING LIGHT
Connect the tester probe of a timing light to the black-red service wire in the J/B No. 1 as shown in the illustration.
5. INSPECT IGNITION TIMING
a) Using SST, connect terminals to TC and CG of the DLC3.
SST 09843-18040
HINT: After engine rpm is kept at 1,000 - 1,500 rpm for 5 seconds, check that it returns to idle speed.
b) Using a timing light, check the ignition timing.
Ignition timing: 8 - 12 ° BTDC 9 idle
c) Remove the SST from the DLC3.
6. FURTHER CHECK IGNITION TIMING
Ignition timing: 6 - 150 BTDC 9 idle
HINT: The timing mark moves in a range between 6° and 15°.
7. DISCONNECT TIMING LIGHT
8. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL