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.
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HOMESERVICE MANUALSMAZDA1991323 BASE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSEMISSION SYSTEMS & SUB-SYSTEMSEGR SOLENOID
1991 Mazda 323 Base, Standard
EGR Solenoid
1991 Mazda 323 Base, StandardSECTION EGR Solenoid
- Disconnect vacuum hoses and blow through vent hose. See Fig 1 . Ensure air flows. Disconnect solenoid connector.
- Apply 12 volts to White/Blue wire ("B" terminal) of solenoid and ground both Red/Black wires ("A" and "C" terminals) of solenoid. Blow through vent hose and ensure air does not flow. Replace solenoid if not okay.
- Blow through vacuum hose and ensure air does not flow. Apply 12 volts to Blue/White wire connector of solenoid and ground both Red/Black wire connectors of solenoid. Blow through vacuum hose and ensure air does flow. Replace solenoid if not okay.
RENDER: 1.0x
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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.