Kia Rio: Description - Crankshaft Position Sensor (CKPS) - Engine Control System - Engine Control / Fuel System - Kia Rio UB 2012-2024 Service ManualKia Rio: Description

Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage of the cylinder head for detecting the engine coolant temperature. The ECTS uses a thermistor that changes resistance with the temperature.
The electrical resistance of the ECTS decreases as the temperature increases, and increases as the temperature decreases. The reference +5V is supplied to the ECTS via a resistor in the ECM. That is, the resistor in the ECM and the thermistor in the ECTS are connected in series. When the resistance value of the thermistor in the ECTS changes according to the engine coolant temperature, the output voltage also changes.
During cold engine operation, the ECM increases the fuel injection duration and controls the ignition timing using the information of engine coolant temperature to avoid engine stalling and improve drivability.

Specification


Crankshaft Position Sensor (CKPS)
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Specification
Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 14.13 ~ 16.83 0 32 5 ...

See also:

Signal Waveform
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Meaning Of Symbols
There are five primary symbols used to complement illustrations. These symbols indicate the part to apply such materials during service. Symbol Meaning ...

Components Location
1. PCV valve 2. Canister 3. Purge control solenoid valve (PCSV) 4. Fuel tank pressure sensor (FTPS) 5. Canister close valve (CCV) 6. Fuel level sensor (FLS) 7. ORV ...

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