Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
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The U code doesnt show up in my info on this model here and this code may just be a result of a scan tool plugged into your vehicle that isnt fully compatible.
Code P0110 indicates a fault with the intake air temp sensor.
Code P0422 indicates the catalytic converter has low efficiency.
Most likely the intake air temp sensor/mass air flow sensor has failed needing replaced or has wiring damage or has come unplugged.This will need checked/tested to locate and repair this here.
The code for the catalytic converter is usually a fault with the catalytic converter itself needing replaced.Check and see if there are any exhaust leaks needing repaired or exhaust components damaged and if these are o.k. the catalytic converter needs replaced.
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