Don't know about ECUs on Morgans, but when jumpstarting a modern car take care because there are risks of ECU damage (apparently).
Thats true, sudden surge in voltage/current when you jumpstart the engine could damage the ECU.
I was told the correct way to jump start a car is to switch on all accessories i.e. max.fan setting, main beams etc to take up the extra current to reduce the voltage surge when jump starting.
And get a proper jump leads, one thats thick and soft, not the cheap oes you get from petrol stations.
