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.

1994 Infiniti J30FACTORY OEM SERVICE PROCEDURE

Fuel Pump

Remove fuel tank filler cap. Turn ignition on. Listen for fuel pump operating noise. If noise is not present, check fuel pump relay and wiring harness between relay and pump. Check fuel pump control module.

FUEL PUMP TERMINAL IDENTIFICATION

Application	Wire Colors
J30	Black & Yellow/Black

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.