my corsa 1.2i, on startup engine misses then revs to 4000 rpm all on its own then cuts out (the engine management light is also on)can anybody help?
You can either go to Vauxhall and get them hook you up to the Tech1 or you can connect a paperclip or wire link between pins A & B of your diagnostic plug and flash out the codes yourself. It's really easy so get in there and have a go.
Have a look here:http://www.knighta.f9.co.uk/info/fau...ault_codes.htm
Once you've worked out the fault code, come back here and some knowledgable person should be able to help.