sputtering while accelerating

[zalock]

As the title says, its sputtering while accerlerating at any rate more than "normal". Im thinking fuel filter or fuel pump, but would like another opinion. If it is one of the two previous mentioned where exactly are they located? Thanks for any help.

 

[LunarEclips]

do you smell fuel???

 

[zalock]

no, no noticable fuel smell.

 

[1gcrazy]

I assume you've checked your wires and plugs right?

 

[zalock]

Yes, i have

 

[zalock]

I was driving down the street the other day and was going uphill and it started to shudder really bad, then the check engine light came on. I took the car over to a parts store and borrowed their scanner and scaned the cars system and it said "missfire in cylender 4" so i checked the plug in cylender 4 (i hadn't checked that one before). The plug was only screwed about half way into the cylender, so i screwed it all the way in and put the plug back on and it seemed to work fine for a day, but now its come back.

I called and am going to order a new coil, new wires, and new plugs. I know its overkill but i want new stuff anyway. What size wires and what type of coil do you think I should go with? Also what plugs do you guys recomend? I wan't to go with bigger wires than oem wich is 7mm right? Thanks for any help.
Zac

 

[vsalas793]

i recommend magnecor 8.5 mm its done a really good job for me