I can't be sure the timing is correct but unless a component associated with the timing has failed since I last started it 6 months ago,I can't see what could've changed,crank sensor maybe?
I noticed last night that it's slightly better when the engine is cold.
I've had a brainwave though,I'll disconnect the throttle switch on my alfa 75 and see what happens, although its jetronic rather than motronic it'll be interesting to see.
