nathanmcc99
New member
Hi everyone , my 2002 wrx is idling perfect except for the heavy smell of I burnt petrol in idle and the idle is perfect but when I put the foot to the floor and hit full boost the whole car starts hegging and when I let off it will back fire and the heavy smell of un burnt petrol will come , anyone know what’s going on here ? Coil packs ? Spark plugs are just after being changed in august with ngk iridium’s