The onboard computer uses the signal of ect as the main correction factor when calculating the ignition advance and the injection duration. The sensor is a temperature sensor with a negative temperature coefficient.
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2 wire temp sensor coolant temperature sensor wiring diagram. Ict billet ls 2 wire pigtail coolant temperature sensor connector water temp ls1 plug radiator switch oem color txl ls1 ls3 ls2 lq4 lq9 ls6 l92 l99 l33 lr4 wpcts30 47 out of 5 stars 21 1499 14. On first gens it has 2 wires one white one blue. Coolant temperature sensors are used by the fuel management system to detect the engines operating temperature. 800 x 600 px source. Connect to desired voltage input. How to go about testing it and how to use the equipment to perform proving procedures.
It is a two wire thermistor immersed in coolant and measures its temperature. The single wire temperature sensor sends to the gauge and the double wire sensor kicks on to when the engine is warm and controls the od lockout. T thermistor temperature input most coolant and air temperature sensors are a 2 wire thermistor design. Learn the electronics of the engine coolant temperature sensor. So is there 2 wires both a yellow and black wire in the wiring harness provided for the connector going to the sensor like in the schematic at nevada545 posted above. Learn how the ect connects and reports its value.
Depending on the sensor information the control unit adapts the injection time and firing angle to the operating conditions. The electrical connector for the combined temperature sensors is keyed to avoid improperly connecting the sensors wiring 1997 28l v6 connector shown. On 1st gen auto 12vs there is what you are referring to. Connect to one side of the thermistor device. Coolant temperature sensor wiring help audi forums size. It is about 4 5 to the rear of the engine from the intake air temperature sensor.
Ill add ive had some difficulty in the past with coolant temp sensors getting the version with the correct number of leads to match my corollas corresponding connector. Connect the other side of the thermistor device to a. Beginning with model year 1994 the engine coolant temperature sensors combined the sensors for the ecm and the gauge into one sensor 1997 28l v6 sensor shown. 2 0 20 volt sensor input any 0 20 volt sensor input wiring. 800 x 600 px source. The engine coolant temperature sensor is temperature variable resistor which usually has a negative temperature coefficient.
Gallery of 2 Wire Temp Sensor Coolant Temperature Sensor Wiring Diagram
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