Original Qsm11 Auto Engine Parts Automotive Electrical System Water Temperature Sensor 4954905

Desc.

Water Temperature Sensor

Part No

4954905

Brand Name  

Cummins, Detroit, DCEC, CCEC, XCEC etc.

Other parts

pls contact freely if you need other P/N

Engine Type

Diesel engine, Gas engine, Diesel Generator, Marine engine, Construction engine Pump engine etc.

Spare Type

Wearing spare parts, maintenance tools, repair kit, upper and lower engine gasket kit.

Condition:

Original and brand new

Applicatble industriy

Retail, marine engines, Construction works, Energy & Mining etc

Key Word:

Original spare parts and engine repair tool kits

Trade terms

FOB EXW CIF DDU DDP,

Door to door is available in some countries.

Delivery time:

Most parts are in stock, bulk order based on qty

Payment

T/T, L/C, D/A, Alipay, Western Union, Paypal etc.

Place of origin

China/USA/Japan/Austria/Mexico

Package

Neutral or original packaging

About the product

The role of the first type of water temperature sensor is relatively simple, through the change of its internal resistance value to achieve through the change of the resistance of the sensor to change the current change to drive the change of the water temperature meter, and indirectly tell the working temperature of the engine. Second, the water temperature sensor has no change in structure, but its role is to provide an analog signal of temperature change to the engine control unit. Its power supply voltage is a 5V power supply provided by the control unit, and the signal returned to the control unit is a linear change signal of 1.3V-3.8V. The main function is to tell the engine control unit how much temperature. In turn, its signal is extremely important to the control unit. The main reason is that the engine has different working methods at different operating temperatures. For example, at 86 degrees below the engine to spray 10% more oil than the normal temperature, the purpose is to let the engine heat up quickly to reduce the engine low temperature wear. After the temperature rises to more than 86 degrees, the engine should be sprayed with less oil, and the temperature should be regenerated more slowly. So its role is very important. If he has a problem, he provides the wrong signal to the engine control unit, for example, he provides the engine cold signal when the hot car is not your car to spray a little more oil, so it looks a little waste oil.

However, these two water temperature sensors are working under different voltage conditions, the sensor for the water temperature meter is 12V, and the engine control unit is 5V, so they are not interchangeable. And the shape of the plug itself is different.

The difference between them is simple: the former has only one wire in the plug, while the latter has two wires in the plug for the engine control unit. Don't get me wrong.