k, well i pulled the wires off and put the number 4 plug in the number 4 cylinder wire and had my gf crank the car and it fired weak. put the same plug in the number 2 wires and it fired weak. put the number 2 plug in the number 2 wire and it fired strong and same for number 4 and it also fired strong. so i cleaned up the number 4 plug and put it all back together and started the car and it started rough like, didnt drive it but i imagine it would be doing the same symptoms. so that tells me that it isnt the wires or the coils and prolly not the plugs either cuz they are just a few months old and less then a 1000 miles on em, that one was prolly just dirty. sooooooo.........injector then? still need to get o-rings first to swap around the injectors to see if it missfires on another cylinder. uuuuughhhhhhhhhhhhhhhh