The battery on my 2013 Hyundai ELANTRA LIMITED GLS
I have replaced both the upper and lower O2
sensors also had all the spark plugs changed. The
reading that I got was that the number for spark
plug needed to be changed which I did and also
bought a new coil for that plug. The core has been
changed on my vehicle also but The engine light
has came back on and the battery keeps dying very
quickly.