Ignition Timing: Testing and Inspection

2. INSPECT IGNITION TIMING
a) Warm up the engine.
b) When using the intelligent tester or OBD II scan tool:
1) Connect the intelligent tester or OBD II scan tool to the DLC3.
2) Enter DATA LIST MODE on the intelligent tester or OBD II scan tool.
Standard ignition timing: 8 to 12° BTDC @ idle

HINT: Refer to the intelligent tester or OBD II scan tool operator's manual if you need help to select the DATA LIST.





c) When not using the intelligent tester or OBD II scan tool:
1) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
SST 09843-18040

NOTICE:
^ Confirm 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 No. 2 cylinder head cover.





3) Pull out the wire harness as shown in the illustration.
4) Connect the clip of the timing light to the engine.

NOTICE:
^ Use a timing light which can detect the first signal.
^ After checking, be sure to tape the wire harness.

5) Check the ignition timing.
Standard ignition timing: 8 to 12° BTDC @ idle

NOTICE: When checking the ignition timing, shift the transmission to the park or neutral position.

HINT: Run the engine at 1,000 to 1,300 rpm for 5 seconds, and check that the engine rpm returns to idle speed.

6) Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.
7) Check the ignition timing.
Standard ignition timing: 0 to 14° BTDC @ idle
8) Confirm that ignition timing advances when the engine rpm is increased.
9) Remove the timing light.