Vauxhall Combo engine cuts out at 3000 rpm and also trys to cut out while driving along

First thing I would do is change the fuel filter and try that .

Hi whittingehame
I've changed it

So many possible causes , EGR valve, , leaking boost pipes , hose collapsing , MAF , partially blocked exhaust or Cat etc . You really are best and cheapest getting it scanned for fault codes rather than guessing and possibly wasting money .

Thanks mate ?

Hope it's something relatively simple . You dont want big problems especially at this time of year .