Thanks for the reply mark I've been trying to locate the issue for a few days now, it seems to stop at high revs , but yesterday once run for about 10 mins it stopped altogether then it started again also getting a funny smell , but not diesel or burning smell from front alternator side , I'm thinking change all air intake hoses, then I know its not them at fault and just try to work it out also air con isn't engaging so maybe a leak from pipe as occurred and maybe that's what the smell is