Ignition Timing: Testing and Inspection

INSPECT IGNITION TIMING
(a) When using an intelligent tester:
(1) Warm up and stop the engine.





(2) Connect the intelligent tester to the DLC3.
(3) Turn the ignition switch ON.
(4) Select the following menu items:
DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / TC (TE1) / ON.

HINT: Refer to the intelligent tester operator's manual for further details.

(5) Inspect the ignition timing during idling.
Ignition timing: 8 to 12 degrees BTDC

NOTICE:
^ Turn all the electrical systems and the A/C off.
^ Inspect the ignition timing with the cooling fan off.
^ When checking the ignition timing, shift the transmission to the neutral position.

(6) Select the following menu items: TC (TE1) / OFF.
(7) Turn the ignition switch OFF.
(8) Disconnect the intelligent tester from the DLC3.
(b) When not using an intelligent tester:
(1) Remove cylinder head cover No. 2.





(2) Pull out the wire harness (brown) shown in the illustration.

NOTICE: After checking, wrap the wire harness with tape.

(3) Warm up and stop the engine.
(4) Connect the clip of the timing light to the wire harness.

NOTICE: Use a timing light that detects the first signal.

(5) Turn the ignition switch ON.

DLC3:

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

NOTICE: Examine the terminal numbers before connecting them. Connecting the wrong terminals could damage the engine.

(7) Inspect the ignition timing during idling.
Ignition timing: 8 to 12 degrees BTDC

NOTICE:
^ Turn all the electrical systems and the A/C off.
^ Inspect the ignition timing with the cooling fan off.
^ When checking the ignition timing, shift the transmission to the neutral position.

(8) Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.
(9) Turn the ignition switch OFF.
(10) Remove the timing light.
(11) Install cylinder head cover No. 2.