Vitaakas

Tried two different sensors. Connected direct wires from ECT sensor to ECU. Check this video: https://youtu.be/crHMYPVcUB8 Voltage is changing stable on ECU and my Voltmeter, but ECT is not updating... In the video (3sec) ECT updating 2.6V - 47C. Still, all is OK. But in 27sec 1.7V should be about 95C and it showing just 67C... ECT is not updating anymore.

Both wires connected direct to the sensor... Still the same problem. Could be a faulty ECU?

https://www.ebay.co.uk/itm/112372548630 I thought my original Mitsubishi GTO sensor is bad, so I bought this one (Link ECU G4+ G4X ECU 1/8 BSP Coolant Temp Temperature Sensor (NTC1-8)). But the same problem occurred.

No it is not good. There is always big drop down at some point (70-80C) and it drops to 50-60C as you can see in the picture. And then temperature is not changing... Also, I have tested with tester the voltage. It is going down stable, so the sensor is definitely is good. I have marked yellow. At that time sensor always was in the kettle. Please, help. Why at 70-80C drops down to 50-60C and freeze...

Attached PC Datalog - 2022-07-14 8;48;56 am.llgx map.pclx

One more test. Created my own calibration table. All the same. Goes up and then at some point drops down. Set 100C at 1V. But when 0.93V, ECT shows 55C...

I have checked voltage it goes up and down sable. Voltage range from 3V (cold) to 0.9V (hot). There should be something not right in my settings. But I can't find it...

I have used 3 different sensors and they are all working (tested, ohms are changing). Picture ETC1: sensor in engine. Temperature was rising to around 65C and then suddenly dropped to 52C... Picture ETC2: sensor in kettle. The same situation. Temperature was rising to around 70C and then suddenly dropped to 54C... Any other options?

I have Link G4+ ECU and installed Link NTC1-8 temperature sensor in my Mitsubishi GTO. But the ECT reading is incorrect. When the car is cold, it looks fine. It goes up to around 70C and then drops to 50-55C and stay the same value... In ECT calibration section I have selected Link NTC1-8 sensor, also tried all different options. Non is showing correct temperature. Please, help!