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 2.5TLFACTORY OEM SERVICE PROCEDURE
Code P0116 - Engine Coolant Temperature (ECT) Sensor
NOTE:
If Codes P0117 and/or P0118 also exist, service them first.
- Connect and operate scan tester, following manufacturer's instructions. Start and run engine at 3000 RPM until fan comes on, then allow it to idle. Read engine coolant temperature. If indicated coolant temperature is not 194-221°F (90-105°C), go to next step. If indicated coolant temperature is 194-221°F (90-105°C), problem is intermittent. Inspect for poor connections or loose wires at ECT sensor and ECM, then repair as necessary.
- Inspect cooling system. Repair as necessary. If cooling system is okay, replace ECT sensor.
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.