Fitted a new cover last night, so obviously leads off etc. Car idled fine this morning whilst putting why work stuffs in, fine down the motorway, in a queue etc. Pulled into works entrance and the car cut out. So started again and cut out once more. Managed to get it to hold rpm for a bit and got to the office where in the car park it held rpm for a bit but then dropped to 400 back up then stalled completely... So I'm stumped at the moment as to what's gone all of a sudden. As Sat was issue free it must be something I've done last night??