Coolant guage problem

[adnantaman]

Hello. I have replaced both the coolant sensor and the instrument cluster lately. It is a glx 2000 with a 1.3 mpi engine. 

NOW I find that the temperature guage goes to the top when engine on. I replaced the temperature guage with the old one but same problem. So I decided to check the sensor. When I unplug the sensor terminal, the guage comes down to zero. I think that means that tere is no problem in harness too. So i decided to replace the coolant sensor one more time. Any idea???

Thanks

[RicardoM]

Read this first.