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
Engine Controls - Self-Diagnostics
- Introduction
- Component Locations
- Self-Diagnostic System
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC 1 Or 2: Front Or Rear Oxygen Sensor
- DTC 3: Map Sensor (Electrical)
- DTC 4, 9, 54 Or 59: Crank/CYL Sensor
- DTC 5: Map Sensor (Mechanical)
- DTC 6: TW Sensor
- DTC 7: Throttle Angle Sensor
- DTC 10: Ta Sensor
- DTC 12: EGR System
- DTC 13: Pa Sensor
- DTC 14: Electronic Air Control Valve (EACV)
- DTC 15: Ignition Output Signal
- DTC 16: Fuel Injector
- DTC 17: Vehicle Speed Sensor
- DTC 18: Ignition Timing Adjuster
- DTC 21 Or 51: Front Or Rear VTEC Spool Valve
- DTC 22 Or 52: Front Or Rear VTEC Oil Pressure Switch
- DTC 23 Or 53: Front Or Rear Knock Sensor
- DTC 30 Or 31: "A" Or "B" A/T FI Signal
- DTC 41 Or 42: Front Or Rear Oxygen Sensor Heater
- DTC 43 Or 44: Front Or Rear Oxygen Sensor/Fuel Supply System
- DTC 45 Or 46: Front Or Rear Fuel Metering System
- DTC 47: Fuel Pump
- Special Tools
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.
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