OK lets work out what the problem is with the original keys they booth have a different random serial number and at the factory they teach the car that these specific keys start the car as the are the only ones in the world wit that serial number. It could be the Morgan factory or the ecu / lock factory it matters not!

Theses keys are also physically cut to fit the steering lock so even more unique.

So you only have one key left there are two ways to sort this.

1 You buy a key from Morgan which probably still needs physically cut and get someone, either a dealer or autolocksmith to connect their box of tricks and teach the car that this new key serial number again unique can start the car cost say £100 or so and if it is a modern car with a remote nearer £250.

On the other hand if you take your key to Timpsons and they have that blank available and they can read the code.

They will copy the actual cut of the key to the blank then they will read the original keys unique number and write that same number to your new key transponder chip.

The car now has two keys with the correct number it does not care so it starts with either one of them.

Cost circa £35 if Timpsons have the blank. On our Mazda they had them in stock on our Suzuki Jeep they had to order the blank and it took a few days for delivery and a second visit to clone the key.

eddie