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.
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HOMESERVICE MANUALSHONDA1993ACCORD L4-2156CC 2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)DESCRIPTION AND OPERATION
1993 Honda Accord L4-2156cc 2.2L SOHC
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
1993 Honda Accord L4-2156cc 2.2L SOHCSECTION Description and Operation
Fig. 34 Coolant Temperature (TW) Sensor And Characteristics Chart:
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
Engine Coolant Temperature (ECT) sensor:
PURPOSE
By measuring the amount of resistance at the sensor, the ECM can adjust the length of injector opening time required by the engine.
LOCATION
Located in the cylinder head just below the distributor,
OPERATION
As water temperature increases, sensor resistance decreases. The ECM receives sensor information as resistance to ground. Water temperature information is used to determine proper fuel delivery.
RENDER: 1.0x
NO RELATED
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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.