hi all,need help here as its doing my head in,i bought my subaru impreza in april and it was running fine,ie boosting ok.then the problem started.when hitting boost there was a slight mis fire,didnt think much of it but then it got worse,to the point where is wont boost after about 3000 rpm,its not a sudden hit like fuel cut it just makes a burbeling noise and wont boost anymore,since this ive changed the maf,coil pack which made no difference,today i changed the spark plugs,it has made it better but still wont boost,im going to order a new set of ht leads and see what happens,just wonderd if anyone had any ideas because im running out of ideas and getting sick of spending money in places it doesnt need it.
ps i did a ecu fault check and its not reading any codes.ive checked all boost pipes and they seem fine,even the solinoid is clicking good when under testing.would b gratefull for any info.
thanx guys