2000 Kia Sportage won’t start. Air bag code showing up battery replaced recently

What is your question?

My 2000 Kia Sportage had the coils misfiring and replaced less than a year ago, it would shake and go very slow until it got up to speed. Then it stopped running completely after 5 months I was told it needed a fuel pump so replaced that but it still wouldn’t start after sitting for four months a jump got it started, but was told a battery was needed. Then I replaced the battery, it started and ran for a day, but would still shake and go slow then after a day or two it stopped again. Now being told the coils are misfiring again and airbag codes are showing up, car still won’t start, but it wants to, but just won’t.

How long has your 2000 Kia Sportage had this problem?

6months