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.
1995 Acura NSX AutomaticFACTORY OEM SERVICE PROCEDURE
Throttle Body
CAUTION:
Do not adjust the throttle stop screw. It is preset at the factory.
- Start the engine and allow it to warm up until the cooling fan comes on.
- Disconnect the EVAP canister vacuum hose from the top of the throttle body and connect a vacuum gauge to the throttle body. See Fig 1 .
- Allow the engine to idle and check that the gauge indicates no vacuum. If there is vacuum, check the throttle cable. See ON-VEHICLE ADJUSTMENTS - NSX & NSX-T article.
- Check that vacuum is indicated on the gauge when the throttle is opened slightly from idle. If the gauge indicates no vacuum, check the throttle body port. If the throttle body port is clogged, clean it with carburetor cleaner.
Factory Service Tools
Use the Manual With the Right Hardware
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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.