I don't even know if an alternative ECU would work. You know how Morgan piece together bits from various places and make it work. It's beyond a random thing now, it's a thing! So it might take some figuring out without changing a lot of components. All I know is its not plugs or coil packs, and its not the fuel pump, or the fancy relay at the back. grin2

DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4