1996 Acura NSX AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Pressure Regulator: Testing

  1. Attach the Fuel Pressure Gauge (07406-0040002), or equivalent to the service port of the fuel filter. See Fig 1 .
  2. Pressure should be 47-53 psi (323-363 kPa) with the regulator vacuum hose disconnected and pinched.
  3. Reconnect the vacuum hose to the pressure regulator.
  4. Check that the fuel pressure rises when the vacuum hose from the fuel pressure regulator is disconnected again.
  5. If the fuel pressure did not rise, replace the fuel pressure regulator.
Fig 1: Testing Fuel Pressure
G00107036Courtesy of AMERICAN HONDA MOTOR CO., INC.
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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.