hey gang cool site
my jap import wrx recently got a bit lumpy on idle
spark plugs needed changing i thought cos they were in there over a year
a guy from subaru replaced the plugs with the proper ngk plugs from subaru
i noticed a better idle but then the car was jerking under full throttle ,not overboosting though no CEL either??
the subie dude reckons its the coilpacks on the plug leads that maybe one of them is gone and theres no way to test them individually!!
any ideas lads im stuck cos the leads are over 100 plus vat each