Say hi to your brother for me, been a loong time, i remember your brother had the same pronlem and he finally fixed it by moifying the wiring and fitting an eatly ecu, all these nats crap isnt worth the time, if i were to get a micra with nats id get hold of an ecu and modifiy it to work without nats, dont fancy breaking down somewhere because of nats deciding to die on me etc...