Ignition Timing: Testing and Inspection
INSPECT IGNITION TIMINGa. Warm up the engine.
b. When using the hand-held tester or OBD II scan tool:
1. Connect the hand-held tester or OBD II scan tool to the DLC3.
2. Enter DATA LIST MODE on the hand-held tester or OBD II scan tool.
Ignition timing: 8 to 12° BTDC
HINT: Please refer to the hand-held tester operator's manual if you need help to select DATA LIST.
c. When not using the hand-held tester or OBD II scan tool:
1. Using SST, connect terminals 13 (TC) and 4 (CG) of DLC3.
SST 09843-18040
NOTICE:
^ Make sure of the terminal numbers before connecting them. Connection with a wrong terminal could damage the engine.
^ Turn OFF all electrical systems before connecting the terminals.
^ Perform this inspection after the cooling fan motor is turned OFF.
2. Remove the cylinder head cover No. 2.
3. Pull out the wire as shown in the illustration.
4. Connect the tester terminal of the timing light to the pulled-out wire.
NOTICE:
^ Use a timing light which detects the first signal.
^ After checking, be sure to wrap the wire harness with tape.
5. Inspect the ignition timing at idle.
Ignition timing: 8 to 12° BTDC
NOTICE: When checking the ignition timing, shift the transmission to the neutral or parking position.
HINT: Run the engine at 1,000 to 1,300 rpm for 5 seconds, check that the engine rpm returns to the idle speed.
6. Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.
7. Inspect the ignition timing at idle.
Ignition timing: 0 to 14° BTDC
8. Confirm that the ignition timing advances when the engine rpm is increased.
9. Remove the timing light.