Hi all can someone please give me some advice my g40 suddenly stopped working completely.so I put a new battary on no difference,replaced starter motor and she started all be it a little bit rough.so I checked my earths and put a brand new thick earth cable on the chassis to the battary and she fired up perfectly and started running absolutely great and thought it sorted the problem.came and out next day and the car would not turn over at all.checked fuses,leads,fuel pump is priming and all seems to be ok I just don't know where to look next.has anyone experienced the same problem at all?