Hi i have a very strange problem with my 93 vr6, seems to have a huge loss of power when it get s to 4000rpm where they normally take off, new leads coilpack etc have cleaned the hall sender as recommended, dont know where to look next, im thinking air flow, is there any way of geting fault codes out of obd1, i have found the 2 plugs next to the heated rear window switch, can i use a breakout to get a pulse etc, also it seems very kangaroo like when lifting off the throttle and back on again. any help would be greatly appriciated, im in bristol so if any one wants to have a look let me know