Rolsmith

I once had a very similar issue but on a very different car. Turned out to be the crank sensor.

Have you since driven car for any duration to see if fault re-occurs. On mine it did, and in fact it took me nearly four hours (for a 45 minute journey) to get home as the car was stopping every 5-10 minutes. I'd then have to then wait another 5-10 minutes before I could drive it again.

Cheers


Philip

1985 Plus 8 four seater
Malone F1000 - track car