last christmas i destroyed cylinder 1 while runnin hard on the highway. blew the tip of the spark plug clean off and damaged the piston. so the head came off. i noticed that cylinders 2-4 looked good. it still had the factory cross hatch (i was kinda shocked cuz the engine has 110,000 km on it). intake runner no. 1 was extremely clean. anyway that was that. so i recently changed my plugs and found that my no. 1 plug looks a lil more worn. (i'm runnin br8eix) luckily i never throw away my old plugs. what i realize is that all my no.1 plugs are worn a bit more. im a bit worried now. im wondering now if i have a no. 1 injector that is playin the fool. is this possible or is it something else???

also, while watchin my old sets of plugs i also realize that all my no. 2 plugs have a smokey impression on the end that goes into the coil. is this normal? is my coil failing???

any advice will be greatly appreciated.

 

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