Signal for water temp gauge??

[gareth h]

Gents
Does Anybody know what signal the water temp gauge in a 2000 k series expects to see?
When we did the vvc conversion we ended up with the boss from the donor car which was a different size to the caterham temp sensor, so ended up using the donor sensor, this goes into the red zone within a few minutes of start up, so I need to source a sensor with the donor vehicle thread size and the same signal as the caterham sensor.
Any ideas?
Thanks
G

[gareth h]

Yes I know, that's why I am trying to find a sensor with the correct signal and thread size, to avoid having to change the rail (which was out of stock when we were doing teh head change)