Thanks very much for your help! ... Anyway the plan is to take it to Nissan tomorrow evening so i am hoping they can diagnose this. Maybe it might need to be left to them.
If that fails i am taking it to a very renowned autoelectrican locally in limerick city he is very very good and has got cars back running that had no hope for people lol!
Btw i sold the Grey Patrol today!! I will miss it and it was driving awesome, new engine and it's gone off with the old VP44 which seemed to be flying and driving like new! The new owner is delighted with it. Looks like the end of an era for me.I have had the old girl for 9years!! Nine trouble free years until a mechanic broke my radiator and she boiled (Then they fitted a new engine from Nissan) and i done the injector pump and all on it but like i have said here i have taken that out and fitted it to my 2007 current driver because it has a warranty till next may! So the old beast is gone and she had almost 600000Ks onboard with the first engine and IP. A great service indeed i think and hard towing everyday....2004 Patrol ZD30 sure is bulletproof and it was bog standard! I think the harder they are worked it helps the EGR and stuff that way to keep things cleaner.
So back on topic, here is hoping i will get this 2007 one sorted...my first thing is to diagnose it now.I don't mind if it's the pump because i have warranty and i will just take it out myself and drop it to the diesel specialists but i am not convinced it's the IP because it's driving away and runs fine once cold....NOT an IP issue because they generally just STOP! To contradict myself i would be upset too if it was the Injector pump because certain amount of faith would be lost in my diesel specialist because the thing is just newly rebuilt!! To confuse things further an air leak could kill the pump too but i don't think there is any air in the system because after fitting a clear line recently it looks great and air free.... it is showing air like symtoms though been sluggish to start in the mornings hence why i suspected air in the first place!
I doubt it's injectors either...
I think with the absense of my Heat button i think user PHDV61 here could be on the money!!

Tomorrow i plan to get to my 2001 parts Patrol and remove the neutral switch from the gearbox...will be handy to have it off anyway to get the heat button back working!