1995 Mazda 929FACTORY OEM SERVICE PROCEDURE

Cold Start Injector Relay

Remove cold start injector relay (located in left/front of engine compartment). Using ohmmeter, check continuity between terminals "A" and "E". Continuity should not exist. See Fig 1 . Apply battery voltage to terminal "C", and ground terminal "D". Again check continuity between terminals "B" and "D" with battery voltage applied. Continuity should exist between terminals "A" and "E" with voltage applied. Replace relay as necessary.

Fig 1: Identifying Cold Start Injector Relay
G95D31685Courtesy 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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.