Dear All,
i have a lovely 2007 Hyundai Sonata 2.4 Benzin. perfect in consumption, speed, acceleration. 1 week ago the check engine light turned on. i took it to the hyundai service and they said the code is P0340. car is running perfectly.
i would like to know what went wrong.i'de appreciate your help/ comments/thoughts what would be the problem before i take it back again for the fix.

P.S
3 weeks ago i changed the oil and the oil filter (i am using after market oil filter)

Thank you all.

 

P0340 is usually a problem with the camshaft position sensor.

 

Unbelievebly the check engine light turned of today. I cant understand that. Shall i take the car to the service or no need any longer?