Hey all

I'm at my wits end with my daughters CBR.

its a 2012 fuel injection model when we bought it the previous owner highlighted that the temp gauge always reads high and it needed a new coolant sensor.
so I eventually get round to fitting it and once installed it’s still reading the same, I happened to have a whole wiring harness spare plus ECU so I connected everything up to the other harness but still the same.
the only thing I can think of is an issue with the clock unit?

anyone seen anything like this before?