I bought my 04 Comp G a year ago. While it was under warranty it started misfiring, I don't remember which cyl though. The dealership replaced plugs, wires, and a coil (i think they did a coil), and a top engine clean. Then later in the summer I had cyl 5 injector go bad. I replaced that and all has been good. Today I get a misfire while going 70-80 uphill. It didn't act up while city driving. So since I'm at work and have 9 hours to dwell on it, what are your thoughts? Injector crapping out again? I will check the plugs and wires for sure when I get home.

I didn't take note of the actual Pxxxx #, but the description in Torque was Cyl 5 misfire detected.

Thanks,
Erik