its actually with someone at the moment,he seems pretty clued up on these cars,when nissan had it,it showed lambda senor and exhaust flow meter were broke,they were changed,still no good,then nissan changed the plugs,still no good,done all there tests,even involved nissan technical,all they said was,computer showed no problems,even suggested its me,which i know its not,have had performanve cars,and raced cars since i was 16,so know when something isnt right,they told me to fill it with fuel,and put additive in it,which they supplied,and try it for a couple of weeks,total cop out i think,anyway a good friend of mine,with a rolling road,track n road in purfleet,some of you may have heard of them,put me onto the man whos doing it now,so im hoping he can sort it,but its really really pissing me off,hes had it 2 weeks! as i said someone has been told with same problem by nissan that its the ECU,but id have thought that would show on computer,will keep you all informed