Thanks for that info, very helpful! I'm getting some rb20 coils this afternoon to put in to replace the one i know is dead, i also had a feeling that it may not be grounding/earthing as good as it should be aswell, so i might get an earthing kit, or make one up. The plugs are fine, no signs of cracking but the one on the dead coil is wet looking as it would be because its not sparking, other than that they are good, they're only 3 days old. If that doesn't fix the problem i can grab a whole set of coils, igniter and harness of a mate.