Misfire trouble-shooting

ok so heres the deal. My taco was missing.....really really bad. So i gave it to my brother, also my mechanic, and told him to fix it lol. Well he ran his computer on it and cyl. 6 was missing. we tried new coil packs and that didnt change a thing. so we rip off the intake and replaced the injector, and still no change. Any one have any other ideas as to what it could be? this is killin me. Its been in the shop for 2 weeks!!!

 

did you start with the spark plug and plug wires? I would have replaced those before the coil pack,

 

new plugs, wires are good.

 

Check again, could of had a bad wire/plug from the beginning.

 

How old are they? Who makes them? You may try going out to an unlit road, pulling over and popping the hood. Wait for your eyes to adjust and then see if you can see any arcs across the wires. If so, they may not be as good as you think.

 

Turns out it was 2 things. One was a plugged injector and in another cylinder some water got past a plug boot and hit a hot plug and cracked the porcelain. So new injector new plugs and new wires for good measure and we should be back in business. I don't think I'm ever gonna wash my engine again lol.

 

yea when the truck miss fires it will usually be the plugs, wires,coil pack or the maf sensor causing it.

 

isnt that all it could be? air spark or fuel right?