Originally Posted by PeterRST

1. Go out and bum some random minger to relieve the anger!

2. Find out if it's ignition cutting out or whether it just doesn't get enough fuel. If it's fuel starvation it will get worse the more you depress the go-pedal! Could be fuel filter or a pump related problem then. Ignition problems mostly occure at low rpms and high boost.

I'm not sure about the Cossie WeberMarelli stuff but on normal Fords of that age (EECIV) the MAP sensors occasionally packed up with similar symptoms. If you unplugged it, the ECU would run the engine from the other sensors (TPS, CPS). Not sure if this works on a Cossie and how prone to fail the MAP sensors are. The symptoms would be similar though

PS: I've only spent about 3 weeks in the UK in all my life but I've already seen more Scoobies there than I have in the other 25 years in Germany...