Hi I wondering if anyone could help I have plug a fault finder into my Punto 1.2 8v petrol and its come back with these fault codes
U1600, P0105, P0115, P0120,and P0340

Any advise would be much help

Thanks

Google will find them (seriously I'm not being snotty).

e.g. [ame="http://www.google.co.uk/search?aq=f&sourceid=chrome&ie=UTF-8&q=fiat+code+U1600"]fiat code U1600 - Google Search[/ame]
Looks like an immobiliser fault.