Ignition Timing: Testing and Inspection
7. INSPECT IGNITION TIMINGa. Warm up engine.
b. When using hand-held tester.
1. Connect the hand-held tester to the DLC3.
HINT: Please refer to the hand-held tester operator's manual for further details.
Ignition timing: 8 to 12° BTDC
c. When not using hand-held tester.
1. Using SST, connect terminals 13 (TC) and 4 (CG) of DLC3.
SST 09843-18040
NOTICE:
^ Be careful not to connect incorrectly. It causes breakage of the engine.
^ Turn OFF all electrical systems.
^ Operate the inspection when the cooling fan motor is turned OFF.
2. Remove the V-bank cover.
3. Pull out the wire harness as shown in the illustration. Connect the clip of the timing light to the engine.
NOTICE: Use a timing light which can detect the first signal.
4. Inspect ignition timing at idle.
Ignition timing: 8 to 12° BTDC
NOTICE: When checking the ignition timing, the transmission is in neutral position.
HINT: After engine rpm is kept at 1,000 to 1,300 rpm for 5 seconds, check that it returns idle speed.
5. Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.
6. Inspect ignition timing at idle.
Ignition timing: 7 to 24° BTDC
7. Confirm that ignition timing moves to advanced angle when the engine rpm is increased.
8. Remove the timing light.