hi all i bought a galaxy mk2 1.9 turbo diesel on a 02 plate a little while ago but as soon as it warms up i loose all power it will only rev to 2,500, ive had the electrics tested no faults, ive changed the vgr valve, full service but no change im not loosing water so dont think its the head. has anyone else had this problem or no what it is its puzzling me now. any help would be helpful cheers jordan