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.
Fuel Pressure Release
Remove fuel filler cap. On Miata, disconnect fuel pump relay 6-pin harness connector. On all other models, disconnect fuel pump relay. See FUEL PUMP RELAY LOCATIONS table under RELAYS & SOLENOIDS. Start engine (if possible) and allow to die. Crank engine several times. Turn ignition off. Reconnect fuel pump relay. Reinstall fuel filler cap.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.