Hi all. Put my new (to me ) Td5 90 in to the shop to get it checked over and mentioned a faulty temperature gauge. Turns out it’s got a Disco ecu! The guys tell me it is reasonably common. It all works apart from the temperature gauge, which reads erratically. They tell me that they have never found a work around. I want to avoid getting a new ecu if I can. Anyone any ideas?