Ok car was goin perfect but yesterday morning it suddenly had like no power when i accelerated, it would do the turbo wind up and all but just no power, later the car went weird wouldnt rev past 3.5 rpm, smoke coming out exhaust, hunting idle, misfiring. I replaced spark plugs, tested coils (splitfires), check aac valve, check for vacuum leaks checked maf, checked intercooler.. Things done before prob i adjusted boost and put 20 dollars prem fuel in car.... Please help im seriously stumped car has fc commander, splitfire coils, stock bov, pod filter etc. 1994 r33 manuel