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.
1984 Mazda B2200FACTORY OEM SERVICE PROCEDURE
Calif. Models
- Warm engine to normal operating temperature. Insert voltmeter test leads into EGR solenoid valve electrical connector with positive lead touching Black/White wire connector, negative lead touching Brown/White wire connector.
- Increase engine speed to 1500 RPM, then slowly decrease engine speed. Current should flow to circuit at 1000-1100 RPM.
- Slowly increase engine speed and record speed at which current stops flowing to circuit. The difference between recorded engine speeds should be 50-120 RPM. If not, replace engine speed switch.
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.
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