Cylinder 3 misfire


I am having a cylinder 3 misfire code. Cylinder three plug is the middle back plug if I am not mistaken. I check the connections and everything is good. Pulled the wire off at the coil pack and it is clean and good to go. ran up and down the wire to check for burns. holes rips etc and nothing was wrong there. I pulled the plug out, it looked fine, but I still replaced it. Re-attached it. Let the battery unplugged for 1.5 hours, plugged the connection back in, started the car and the issue still remains. I don't think it is the coil. The car has 35,000 miles and the UIM gasket was replaced at 32,000 miles so I don't think it is that.

Any ideas?

Maybe the injector went bad? I am running Lucas gas treatment in it right now.

I would say either the injector or it picked up some bad gas, but most likely the injector.

Isn't that somewhat in the low mile range for that to be the problem? I have some TrailBlazer injectors with more Lb per hour flow. Should I try that?

I dunno about that one. You'd have to ask some of the more expierienced guys about that one. I just know it could be the injectors because mine did that and it was the injectors.
BTW, mine croaked at like 20k