Ignition Timing: Testing and Inspection

INSPECT IGNITION TIMING

NOTICE:
^ Turn all electrical systems OFF.
^ Inspect the ignition timing with the cooling fan OFF.

a) Warm up engine.





b) When using the hand-held tester or OBD II scan tool.

NOTICE: Be sure not to connect connector incorrectly. It causes breakage of the engine.

1) Turn the ignition switch to ON.
2) Select the following menu the items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / IGN ADVANCE
Ignition timing: 4 to 12° CA BTDC (at idle)

HINT: Refer to the hand-held tester operator's manual for further information regarding the selection of DATA LIST.

3) Check that the ignition timing advances immediately when the engine speed is increased.
c) When not using the hand-held tester or OBD II scan tool.

NOTICE: Be sure not to connect SST incorrectly. It causes breakage of the engine.





1) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
SST 09843-18040





2) Remove the 3 bolts and nut, then remove the cylinder head cover No. 2.
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) Inspect the ignition timing during idling.
Ignition timing: 8 to 12° BTDC

NOTICE: When checking the ignition timing, the transmission is at the neutral position.

HINT: After the engine speed is kept at 1,000 to 1,300 rpm for 5 seconds, check that it returns to the idling speed.

6) Disconnect the terminals 13 (TC) and 4 (CG) of the DLC3.
7) Inspect the ignition timing during idling.
Ignition timing: 4 to 12° BTDC
8) Confirm that the ignition timing moves to the advance angle side when the engine speed is increased.
9) Remove the timing light.
10) Reinstall the cylinder head cover No. 2 with the 3 bolts and nut.
Torque: 7.0 Nm (71 kgf-cm, 62 inch lbs.)