hi just moved back to uk from nz, sold my mint 4x4 over there and now i have a less than mint 4x4 with a huge misfire, rev counter flaps around and reads about double slight misfire felt around 2500 rpm more notacible out of gear or in low gears then runs fine until 5-5.5k rpm when engine cuts out and back fires, again worse in first and second.
i have tried two sets of plugs with gaps from .5 to .7 champion and bosch iridiums, leads, group a coil, cps gap 0.6mm phase sensor gap 0.2mm checked conections on both sensors there are no air leaks and the problem is the same at 22psi and 15 psi so it is not overboost.
i have spent three days looking at old posts and am now at loose end any help please,,,,, kev