I fear you are correct Harald. Morgan appear to have inserted the MFU pcb with it’s microcontroller between the fuel sender and fuel gauge, not sure why.
Fingers crossed it’s a sender issue. Not much that can be done with this pcb if it is faulty. However as always with any instrumentation ‘funnies’ its always worth checking the two connectors. The contact resistance of those exposed connector pins will always be a potential weak point.
