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 StandardFACTORY OEM SERVICE PROCEDURE
Fuel Pump
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.
- With the ignition switch turned to OFF position, disconnect the PGM-FI main relay connector.
- Connect a jumper wire between main relay connector terminals No. 5 and No. 7 (both Black/Yellow wires). See Fig 1 .
- Relieve fuel pressure, then tighten the service bolt.
- Disconnect the fuel return hose from the regulator.
- Turn the ignition switch to ON for 10 seconds and measure the amount of fuel flow. Amount should be: 11.2 oz. (333 cc) minimum in 10 seconds at 12 volts. See Fig 2
. If fuel flow is less than 11.2 oz. (333 cc), or there is no fuel flow, check for:
- Clogged fuel filter.
- Clogged fuel line.
- Pressure regulator failure.
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.
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