Soldier GT

Before I went on my deployment (Oct time frame) I had noticed my car hesitating while driving. It will drive fine and then sputter and then it'll drive fine again. Upon returning home for my mid tour leave it's still doing it.. Also it's starting to take a little more time (more than usual) starting... Any ideas? The car has 70,000 miles on it. Thanks and any help will be apprecaited..

Z28KLR

I'd start with the usual tune up items, like maybe new plugs and fuel filter. If you don't have a CEL, try doing some datalogging with your tuner to see if it's a misfire and from which cylinder(s), could be a bad COP or two. If you're real desperate, you could try some fuel injector cleaner (although most of that "additive" stuff is regarded as snake oil).