calibration etc sensor

Hi everyone. it is the first time I post a topic, I do some difficulty even with the language so I use a translator. I am a beginner I have a problem with a sensor etc which I think does not read the right temperature. the ecu is a vipec v88 in plug and play mode, for a watercraft yamaha 4-cylinder engine. it's a bit of time that I use it with a basic map, now that I seem to have learned something I noticed this problem with reading this sensor, etc. can someone explain to me how to best set this?

thank you in advance

You may have trouble calibrating that sensor if there isn't a pre-defined option for your engine. The most common ECT sensor is the Bosch NTC sensor which is 2500 ohms at 20 deg C. Your sensor is 54000-69000 ohms so you're in a completely different range. You also can't apply a linear curve between the two points listed (20 C and 100C) as the curve for an NTC sensor is not a straight line.

Personally I'd either replace the sensor with something that has a known calibration such as the Bosch -026 fluid temp sensor or calibrate the sensor you have against a known sensor out of the engine.

hello I followed your advice and I installed a bosch 026 sensor and I must say it works very well

thanks for the advice

No problem! Glad you have it sorted.