Ok yesterday phoned auto electricians first one says bring it down we charge £48 for diagnosis, so I says ok how much is your labour rate for repair. We don't have an hourly rate, we charge labour and materials after job, wtf thanks but no thanks. Second one I phone says bring it down and leave it with us for a few days sounds like ecu so we'll send it off for test, didn't even bother asking how much again wtf. So anyway today went about continuity testing from ecu to MAF, nothing so yes must be a break somewhere. Just to confirm checked from fuse box to MAF what a pain that was to remove until I realised remove the earth lol again nothing. Checked all the harness couldn't find a break so thought must be faulty connector and decided to cut it off as would be splicing anyways, suddenly wires coming out some idiot had done a splice using electrical tape. Found the break and will be repairing tomorrow. Thanks everyone for your input.