2015 Kia soul

Hello, I’m Pete from the Car Genius team at RepairPal. I’m sorry you’re dealing with this concern on your 2015 Kia Soul. Fault code P0420 can generally indicate a fault with the catalytic converter system. In some cases this code can be caused by poor fuel quality as well. What I recommend is to have the fault code properly diagnosed to see if the fuel quality is the cause, a faulty oxygen sensor, or possibly a fault with the catalytic converter, damage to the exhaust, or an exhaust leak as all of these can create this concern. Proper testing will help verify which repair is needed. If you’d like to find a trusted, certified repair shop in your area, you can check here: https://repairpal.com/certified. If you need more advice, or have any further questions about your vehicle, we’re here to help. Just give us a call at 877-913-1554 where we will be happy to assist!