Cylinder number order/location on 2012 Kia Soul 1.6 ltr ?

Hi this is Dusty, I'm one of the auto experts on RepairPal's Car Genius team. If you're standing in front of the vehicle facing the engine, cylinder 1 is located on the left (passenger) side of the engine, then from left to right, 2, 3, and 4. Of the codes you mentioned P0263 is the one I'd be most concerned with, as it indicates that cylinder number 1 isn't operating correctly and is affecting the overall performance of the engine. If replacing the coils and spark plugs doesn't rectify the issue, I'd recommend seeking diagnosis by a qualified professional to avoid lingering issues. If you have any other questions feel free to give us a call at 877-913-1554! We'll be happy to help or find you a certified shop in your area!