KIA SEDONA TROUBLE CODE

These Symptoms Are As Reported By My Wife. I Have Not Had The Van Do This To Me Personally Yet. My Van Will Intermittantly Have A Problem...

I Am A Mechanic Who Is Having A Problem Fixing A Kia Sedona With Hard Code P0335

I Recently Had 2 Different Shops (one A Dealer) Check My Diagnostic System And Troubleshoot Fault Codes. One Was A P0441 For Evap/purge...

Were Do I Start With These Codes, What Should I Change First. Code, Po442, Po456, Po103, Po300, Po301, Po302, Po303, Po103.