1994 Acura NSX AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Pump Operation

WARNING: DO NOT smoke during the test. Keep open flame away from your work area. ALWAYS release fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components.

If you suspect a problem with the fuel pump, check that the fuel pump actually runs. When it is ON, you will hear some noise if you hold your ear to the fuel fill port with the fuel fill cap removed. The fuel pump should run for two seconds when the ignition switch is first turned on. If the fuel pump does not make noise, check using following procedure.

  1. Remove the seat back panels.
  2. CAUTION: Be sure to turn the ignition switch to OFF before disconnecting the wires.
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.