Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Mystery malfunction code

If you do a Google search for the error code there are LOTS of posts covering a wide range of cars. This sums it up well:

The vapor pressure sensor, VSV for canister closed valve (CCV), VSV for pressure switching valve are used
to detect abnormalities in the evaporative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system by the vapor
pressure sensor signal.
DTCs P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components
when there is a malfunction anywhere in the VSV for EVAP, the VSV
for pressure switching valve, or in the vapor pressure sensor itself.

checked basic , gas cap.

More than likely you need to take to Morgan specialist or dealership to see if there is a leak somewhere or wether there is a malfunction with a vac. solenoid valve(vsv)

Of course if your Morgan doesn't have an evaporation control system then it is really confusing!