help newbie ere
hello and i must say this is a grate site....o.k.i own a 95 wrx it has a remapped ecu 17psi,fmic,k+n, 3 in turbo back exhaust, and front headers, walbro pump, pushin 320 bhp. it has developed a bogging down sound when reved and a mis and backfire through intake the car sputters when revvin like its down a cyl i have replaced turbo,plugs (old ones a very sooty,over fuling???) and checked coil packs and reset ecu to no joy, i have unplugged afm when running and the car stalls, although when started with afm still unplugged the misfire goes away and check light is on due to unplugged afm. HELP ITS DRIVING ME CRAZY all weekend under bonett is not good on the old back lol. is my afm goosed????