wrx sti uk 03 cylinder no.1 misfire
 

hey guys,my 03 sti uk is showing a misfire on cylinder no.1,it has 71k miles,fitted new plugs and swapped coil packs around but MIL light still comes back on after couple of days,any ideas?.

u need to do a compression check, i had one same mileage all valve clearances gone tight , caused exhaust valve to burn out.

thanks for the advice.can u give me an idea of cost?