Inop coolant temp gauge in 2000 Boxster S

[Gwndds]

We put a 2001 S engine I our 2000 S Boxstzer and can't get the gauge to show any reading of the coolant temperature. We have been to two shops with qualified Porsche mechanics and they are scratching their heads. They have tested the sending unit and it works. We tried putting the 2001 S instrument cluser in place of the original cluster and it did not work. So we are at a loss as to what to do.

Can we somehow hook up an aftermarket gauge to the sender? Do we need to try another 2000 S cluster?

Any suggestions as to what to do will be appreciated.

[Loren]

Yes the Boxster and Boxster S got different water temperature sensors in those years. (996.606.405.01 and 996.606.410.00 respectively).

2001 was also the first year of a new instrument cluster design.

 

Did you program the DME and tell it the car is now a Boxster S?

Change the "Order Type" from "986310" to "986320". This should also affect the DME power settings for the engine but will also likely take care of the water temperature.

You will need a Porsche PST2 or PIWIS diagnostic tool to do this.

Give that a try and tell me if that fixes all.