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 Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)FACTORY OEM SERVICE PROCEDURE
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Engine Coolant Temperature (ECT) Sensor Location:
PURPOSE
The Engine Coolant Temperature (ECT) Sensor measures coolant temperature to supply the Engine Control Module (ECM) with engine temperature data.
OPERATION
As coolant temperature increases, sensor resistance decreases. The ECM receives sensor information as resistance to ground. Coolant temperature information is used to determine proper fuel delivery.
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.