What should the voltage be on the ECT sensor?
What should the voltage be on the ECT sensor?
The normal value of the ECT sensor voltage is 2V at cold engine and 0.5V at warm engine. A defect sensor can indicate a voltage of 1.5V at cold engine and 1.25V at warm engine, thus causing difficulties of starting a cold engine and a presence of rich fuel mixture when the engine is warm.
What happens to ECT sensor 2 when coolant is high?
As the engine coolant warms, the sensor resistance decreases, and the PCM detects a low ECT2 signal voltage. If the ECT sensor 2 output voltage is less than a set value when the engine coolant temperature is high, the PCM detects a malfunction and a DTC is stored.
What should the ECT be when the engine is warm?
Start the engine and warm it to the operating temperature. During engine warming the voltage should decrease in accordance with the values given in Table-1. Common problem is that the output resistance (and voltage) changes incorrectly beyond its normal range. The normal value of the ECT sensor voltage is 2V at cold engine and 0.5V at warm engine.
What is the function of the p2185 ECT sensor?
Nonetheless, if we take the most common definition of code P2185 to be “Coolant Temperature Sensor at Radiator Outlet Signal High”, the function of the affected sensor is to monitor the temperature of the engine coolant at the radiator outlet, from where the cooled coolant is passed back into the engine.
The normal value of the ECT sensor voltage is 2V at cold engine and 0.5V at warm engine. A defect sensor can indicate a voltage of 1.5V at cold engine and 1.25V at warm engine, thus causing difficulties of starting a cold engine and a presence of rich fuel mixture when the engine is warm.
As the engine coolant warms, the sensor resistance decreases, and the PCM detects a low ECT2 signal voltage. If the ECT sensor 2 output voltage is less than a set value when the engine coolant temperature is high, the PCM detects a malfunction and a DTC is stored.
Start the engine and warm it to the operating temperature. During engine warming the voltage should decrease in accordance with the values given in Table-1. Common problem is that the output resistance (and voltage) changes incorrectly beyond its normal range. The normal value of the ECT sensor voltage is 2V at cold engine and 0.5V at warm engine.
Nonetheless, if we take the most common definition of code P2185 to be “Coolant Temperature Sensor at Radiator Outlet Signal High”, the function of the affected sensor is to monitor the temperature of the engine coolant at the radiator outlet, from where the cooled coolant is passed back into the engine.
What does the coolant temperature sensor ( ECT ) do?
The engine coolant temperature sensor is temperature-variable resistor, which usually has a negative temperature coefficient. It is a two-wire thermistor immersed in coolant and measures its temperature. The onboard computer uses the signal of ECT as the main correction factor when calculating the ignition advance and the injection duration.
How is ECT used in the ignition advance?
The onboard computer uses the signal of ECT as the main correction factor when calculating the ignition advance and the injection duration. The ECT sensor is shown on fig. 1.
