Well adjusting the mixture, if I put the accelerator cable on maxium travel the car runs fine but the auxilery air valve keeps opening, so I moved the clip to a couple of notches down now the car revs at about 1500 on idle, my fix was to turn the screw anti clockwise until it idles at about 900, although this seems to be a normal sort of operating condition and the auxilery air valve isnt constantly cutting in, the fuel is still dissapearing, I think the problem is greater than just overfueling, and to top it off my fuel guage has stoped again (not stuck like before) could this be part of the problem, If I unplug the fuel pressure regualator what affect would it have and could this also be part of the problem, iv also noticed that one of my injectors is loose if I push it whilst the car is running it revs higher let go and the revs drop not by much perhaps 200 or so, would it be best to put the accelerator cable tight and drop the fuel mixture or loosen the accelerator and increase the fuel mixture, thanks for your help thus far.