hi al .i get same prob with mine, i put it down to being low on fuel but you say yours does it with full tank. just recently had prob with idle control valve ,it was spluttering in morning till it got warm then it would cut out some times when coming to stop.cleaned it out read fault codes on ECU came up with lamba fault .but noticed temp sensor reading droping down from 88 to -17 degrees .but don't think thats has anything to do with wot you and myself are getting .have you changed your plugs yet. MARK