Oil pressure sender

[Blackpig]

This seems a perennial problem for Porsche’s of all flavours, mine has decided to play the full scale trick which seems to be cured by replacement.
I have heard that there was a Subaru that used a very similar design and is a fraction of the price, even allowing for thread adaptors or whatever. Does any one know more about this?
Secondly, has any one explored why the senders fail?

[stratfordshark]

Before getting new sender, check whether the sender wire is shorted to ground.

If it is, then the gauge will be pegged full, and it’s wiring issue not sender.