Owner: Rich Porter aka @fragmentedmax
OEM Part Number: 22630-44B20
On the 4th Generation Maxima engine the Engine Coolant Temperature Sensor is located in the water outlet tube close to the engine end of the upper radiator hose. There are two sensors in that area. The one nearest the hose is for the dashboard temperature gauge. The ECTS, the one you’re interested in, is right next to the the gauge sending unit. There is a good picture of these sensors in the Haynes manual on page 3-7.
With the engine cold, disconnect the ECTS and measure its resistance. Reconnect the ECTS, start the engine, run it until fully warmed up. Stop the engine, and repeat the resistance measurement. The “warm” reading should be a much lower value than the “cold” reading.
The specs for the ECTS are:
Credit: Brandon Reams
Community Member Credit: Tristan Tomas
Wheel Brand: Garson D.A.D Ryugi
Wheel Specs: 19×9 +15, 19×10 +22
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Owner: Fahd Nasser
Color: Dark Slate Metallic K50
Owner: Roger McGee Sr.