Ignition Timing

1. Warm up the engine to normal operating temperature, and check the condition of the engine (spark plugs, leaks in hoses, etc.).
2. Turn all electrical loads OFF.
3. Connect the MAZDA SPECIAL SERVICE TOOL #49 B019 9A0 to the diagnosis connector.

Fig. 2 Diagnostic Connector:

Note:
If the SST is not used, jump across the TEN terminal and the GND terminal of the diagnostic connector.

Caution:
Be extremely careful when making connections to the diagnosis connector as a mistaken connection will cause a malfunction.

4. Connect a timing light.
5. Connect a tachometer to the diagnosis connector IG- terminal.

Fig. 1 Diagnostic Connector. IG- Terminal.:

6. Set SST switch "A" to position 1.
7. Set TEST SW to SELF-TEST.
8 Apply parking brake.
9. Check that idle speed is within specification.

IDLE SPEED (Neutral or P range): 750 ± 50 rpm

Note:
The idle speed for Automatic (Canada) transmission model is approximately 800 rpm when the parking brake is NOT APPLIED.

Note:
Check the idle speed without the electric cooling fan operating.

Timing Mark:

10. Check if the timing mark (yellow) on the crankshaft pulley and the mark on the timing belt cover are aligned.

Ignition timing BTDC 5 ± 1°

Fig. 4 Distributor Lock Bolts:

11. If the marks are not aligned, loosen the distributor lock bolts, and turn the distributor to make the adjustment.
12. Tighten the distributor lock bolts to the specified torque.

Tightening torque: 19-25 Nm (1.9-2.6 m-Kg, 14-19 ft-lb)

13. After adjusting the ignition timing, disconnect the SST or remove the jumper wire.