Kia Troubleshooting Questions? Ask a Mechanic
How many miles on the car?
Ok, first I would try swapping the coils with each other and see if the misfire codes move to cylinder 1 and 3. Sometimes, in fact most of the time the resistance test doesn't work. Sometimes it takes specifics to make them act up, such as high heat, high rpms and things of this nature.
That info would have been handy at the beginning of the this.
I would say if you swap the coils and the condition stays on 1 and 4 then you need to recheck the timing. Or if it goes back to all 4 cylinders recheck the timing.