Join Date: Apr 2011
Location: Corona, CA
Drives: 05 Durango, 2012 Kia Soul+
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Start with easiest checks first
I am a newbie at Kia's, but have been a car tinkerer for years, and right up front, this sounds like an air leak, or possibly some bad wiring. Run the car and spray some carb cleaner around the intake manifold and see if idle doesn't change indicating a leak. Your error codes sound totally cross related as if you have some bad wiring to ECM, so check for damage or bad grounding on all sensor wires/harnesses. Clean the MAF if you haven't already (especially if you use an oiled filter). Good luck, all those codes together is confusing. o2 says too rich...TPS has fault...fuel trim out of range...MAF has error... hmmm.
The possibilities are endless.... My best guesses are: intake leak, bad MAF sensor, timing off, or plugged exhaust system (cats).