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.
1989 Mazda RX-7 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
System Inspection
- Operate engine to warm temperature. Ensure air temperature is above 113°F (45°C). Shut engine off. Connect voltmeter to pressure regulator control solenoid valve (Blue/Orange wire). See Fig 1 .
- Start engine and note voltage. Voltage should be below 2 volts for 1-4 minutes after engine is started, then increase to approximately 12 volts after 1-4 minutes.
Factory Service Tools
Use the Manual With the Right Hardware
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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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