hi
Rite, i spoke to an old fella who has done a lot of work on rst's and he says he is almost certain its the metering unit as it was sat around for a year or so the O-rings dry up inside and just fcuk them up. I did already buy another one but i recon its got same problem. So now i am goin to take my mates off his car and try it so i know for sure. mission!