sorry guy's forgot to let you know LPG been fitted back into car but not used as tank empty , all connected up but no gas .LPG from tingly tech, but yes it can start from gas as well as petrol but none in system so only using petrol at the moment . could it be somthing to do with pump , as its the only thing that's been changed , it run's all time when engine on but my thought for what it's worth was fuel not pressurized enough or am on the wrong TRACK location is lockerbie south scotland