I previously posted on the vishnu forums that i had a check engine code that read #1 and 3 pistons' are misfiring. i re-checked the gaps on my plugs since i changed them to copper and they're now one step colder than stock. however, the check engine light came back on and it's the same problem. is there someone who knows what i can do to eliminate this problem? i do realize that it's not a big issue, but i do want to get rid of this. thanks for all replies!