Got this diesal corsa in for misfire when cold, it misfires for 2 minutes then its clear till next morning, Its still under warranty but main dealers wont fix it as they say as im not vat registered they wont honour it (because ive serviced it from new), Scanned it with snap on scanner no faults logged, its also got a diesal knock when fault accurs sound on the lines of a faulty injector to me,do these injectors need coding in.

Sounds to me like air may be getting in the fuel system somewhere.

Matt

Ended up been sticking nozzle on no 3 injector, dealer did it under warrenty in end

Thanks