NOTE: Before adjusting ignition timing, warm engine to normal operating temperature. Turn off all accessories. Place transmission in Neutral (M/T) or Park (A/T). Wait for cooling fan to stop. Ensure idle speed is correct. See IDLE SPEED under IDLE SPEED & MIXTURE.

Connect New Generation Star (NGS) Tool (49 T088 0A0) to data link connector 2 located under left side of dash. See Fig 1 . Using NSG tool, select PID/DATA MONITOR AND RECORD and monitor RPM. Connect Diagnostic Tool (49 B019 9A0) to data link connector. Set SYSTEM SELECT to position 1 and TEST SWITCH to SELF-TEST.
Connect timing light to high-tension lead No. 1. Set timing to specification. See IGNITION TIMING SPECIFICATIONS TABLE . See Fig 2 .
If ignition timing is not within specification, loosen distributor or camshaft position sensor lock bolt. Rotate distributor or camshaft position sensor until timing marks are aligned. Tighten lock bolt. On all models, disconnect NGS tool from data link connector 2 and diagnostic tool from data link connector.

Fig 1: Locating Data Link Connector 2 (Typical)

Courtesy of MAZDA MOTORS CORP.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Ignition Timing

Use the Manual With the Right Hardware

When to See a Mechanic

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