I have 2011 Hyundai Santa fe. The engine check light is sometimes appear and when the car was scanned with OBD scanner we got camshaft position sensor circuit B range/performance blank 2 with code error p0391
You probably have to replaced the camshaft position sensor. You should contact you dealer, for 2011 model the warranty should cover the sensor.
P0391 HYUNDAI - Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 Read more: https://www.autocodes.com/p0391_hyundai.html
Sensor location:
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