You are not kidding about those cover screws! But so far still have two....
So thanks for the link, all good. My error code is p0170 front adaptive max limit. My knowledge here gets limited but I think(!) this is to do with engine knock control.
In the Morgan which cylinder is the front? Left or right?
From previous posts I wonder if in advanced mode a reset of the adaptive maps would help? Not going there unless totally confident though!
Any thoughts?