Hey guys i have a engine problem with my 2004 jeep wrangler TJ 2.4L. When i get on the throttle to speed up from a very slow speed my engine starts to spit and sputter and then backfire and then it'll finally get back in to proper firing sequence. I have ruled out a couple of things like vacuum leak, fuel pressure, and fuel filter (because this model only has a mesh sock for a fuel filter in the gas tank that cannot be replaced). I have been running 93 octane. It seems to do the spitting and sputter and backfiring more prominent when the engine is running at 195F. I have an airaid cold air intake and a taylor made helix throttle body spacer on my 2.4. Those are the only things done to my engine. I have a rough country 3.25" suspension lift and running 33 x 12.20 BFG KM2s. The engine had a tune up almost a year ago and everything was replaced with brand new stock wires and spark plugs. The computer is not throwing a code on my dash so i have no clue to what the problem is. I was thinking i could have a hair line crack in my coil pack or something is wrong with the computer. Please help me to figure what my problem is with my jeep. Thank you!