P0350 KIA -

Question

po350 after engine runs for 45 min to 1 hr loss of power and wants to die but will recover with throttle up but will not idle, ECM?

Answer 1

P0350 2002 KIA SEDONA - Ignition Coil Primary/Secondary Circuit

Read more: https://www.autocodes.com/p0350_2002_kia_sedona.html

It's probably one of the ignition coils. You could try replacing one coil first and if the code comes back, the either replaced another coil or swap with the old one you just replaced.