Ok so 1st of all I was definitely planning on doing the fuel, but in respect to my problem, even if the fuel was so bad it would not run, that would not explain the problem in the first place a year ago that made it explode in the first place, and why would bad gas make it backfire through the intake now, second of all I definitely checked and double checked yesterday the firing order you really cannot change the order because it has coil packs but the wires are plugged in and routed correctly, So STUMPED, really could use some help
