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.
1992 Acura NSX AutomaticFACTORY OEM SERVICE PROCEDURE
Fuel Pressure Regulator
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.
- Attach a pressure gauge to the service port of the fuel filter. Pressure should be 46-53 psi (323-363 kPa) with the regulator vacuum hose disconnected. See Fig 1 .
- Reconnect the vacuum hose to the pressure regulator.
- Ensure fuel pressure rises when the vacuum hose from the regulator is disconnected again. If the fuel pressure did not rise, check to see if it rises with the fuel return hose lightly pinched. If the fuel pressure still does not rise, replace the pressure regulator.
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.