[andreiionut]

Hello everyone! So, once of a sudden my check engine light started blinking, and my cooling fan started spinning without stopping. Waited for 5 minutes, but the fan would run continuously, even with the engine cold. Scanned for the error, and i get coolant temp sensor error. Deleted the error, the check engine stopped blinking and the fan stopped. Searched for the temperature sensor and i get one with 3 pins. The problem is that, what i think is the temperature sensor, has only one wire, and one pin. Maybe i am wrong, but isn't it bolted to the engine between the two cylinders?

[bobinmurphy]

According to the service manual I have on Gen 2 (950 Trail/Sport and 800 Trail)  the Coolant Temperature Sensor has three wires.  Two form a circuit which provides coolant temperature signal to the ECU, the third  goes to the dash.  Assuming CFMoto used the same part in Gen 1 that would match what you've found.

[andreiionut]

Right! The only problem is that the sensor i found, has only one wire coming out of it. Where would be the other 2?

[NMKawierider]

According to the service manual I have on Gen 2 (950 Trail/Sport and 800 Trail)  the Coolant Temperature Sensor has three wires.  Two form a circuit which provides coolant temperature signal to the ECU, the third  goes to the dash.  Assuming CFMoto used the same part in Gen 1 that would match what you've found.

Correct. And the single wired sensor between the two cylinders would likely be the oil pressure sensor.

[andreiionut]

NMKawierider just what i thought, that would be the oil pressure sensor. But i just can't find the coolant temperature sensor. Thought it would be located near the thermostat, but guess what...it is not...😅

[NMKawierider]

NMKawierider just what i thought, that would be the oil pressure sensor. But i just can't find the coolant temperature sensor. Thought it would be located near the thermostat, but guess what...it is not...😅

The coolant temp sensor is on cylinder #1 which is the one closest to the muffler. It will be next to the thermostat housing on the head on the CVT cover side.


 

[andreiionut]

Thank you very much for your help! I would get all different information, but not the right one! Thanks, again!!🤝🙏