1995 Mazda 929FACTORY OEM SERVICE PROCEDURE

Ignition Timing

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). Ensure idle speed is correct. See IDLE SPEED  under IDLE SPEED & MIXTURE. If ignition timing is not within specification, loosen distributor or crankshaft position sensor lock bolt. Rotate distributor or crankshaft position sensor until timing marks are aligned. Tighten lock bolt.
  1. Connect Diagnostic Tester (49-B019-9A0) to data link connector. Set SYSTEM SELECT to position 1 and TEST SWITCH to SELF-TEST, or connect jumper wire between data link connector terminals TEN and GND. See Fig 1 .
  2. Connect timing light to engine. Set timing to specification). Refer to the IGNITION TIMING SPECIFICATIONS  table. See Fig 2 .
Fig 1: Identifying Data Link Connector Terminals
G94A44453Courtesy of MAZDA MOTORS CORP.
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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.

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