lol, i just got my misfire figured out recently. i had a plug that kept fouling out fast as hell on that cylinder. turns out it was a coil.
coil- 25
new plug wires- 25
copper core al 605's- 1.99 ea.
the injectors are easy.
depressurize the rails by pushing in on the rail shrader valve, it faces the front of the car
you may need to get a fuel rail disconnect tool from napa, i had rubber fuel lines so i could bend the hoses pull the rails up with out disconnecting the lines
10mm socket with about 5 or 6 inch 3/8 drive extension
four nuts, one on each corner of the LIM and a 14mm on top of the of the SC
pull the little retaining clips off of the injector plugs, 3 in front and 3 in back, with needle nose pliers
pull the rail up and the injectors will come up with it, with the injector retaining clips that hold it on to the rail
remove the injector that goes to the cylinder with the misfire and swap it with another one, just keep note of which one the 'supposed' bad one was swapped with to see if the missfire moved with the injector
you can clean it out with some carb cleaner or some other type of degreaser, and the injector cleaner will also help
put it all back together, fire it up, and scan. you dont have to put the injector plug clips back on yet, just push the plugs on and make sure they are on snug. see if the missfire moved with the injector, if so, bad injector.
hope this helps, just did it about a week ago and dumped a can of seafoam into a full tank to run through the system. my missfire stayed
