Never underestimate the importance of earth points. When I was struggling with the GDI immobiliser, the first advice was to redo the earths. When I had my recent bad running, first advice was check the earths. They were good. No resistance. Then when the dealer approached the factory, it was, resite the earth adjacent to the servo onto the chassis. It made no difference but this regular advice tells you a lot. On my GDI, that earth adjacent to the servo was a large circular eyelet on a smaller bolt, trapped between two penny washers. Not the best fix. Now it's way more professional with two separate earths onto the chassis inside the engine bay. So whatever you suffer from, whatever Morgan, check the earths.
