Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1993 Mazda 929FACTORY OEM SERVICE PROCEDURE
IGNITOR (MPV & 929)
- Turn ignition off. Disconnect ignitor connector and install Test Harness (49 H018 001 on MPV or 49 N018 001 on 929). Using a needle-type ohmmeter, connect (+) lead to ground and (-) lead to single-pin test wire of test harness. See Fig 1
.CAUTION: Ensure ohmmeter is installed with (+) lead to ground and (-) lead to single-pin wire of test harness. DO NOT reverse leads or damage may result.
- Connect Ignitor Checker (49 F018 002 on MPV or 49 H018 910 on 929) to other lead of test harness and to battery. Set ohmmeter to X1 scale.
- Turn ignition on. DO NOT touch ignitor checker SW1 switch. Push up ignitor checker SW2 switch and note ohmmeter reading. Ohmmeter needle should jump to 1/2 of the scale and then return. If ohmmeter does not operate as specified, replace ignitor.
Factory Service Tools
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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.