Hello Scotty and everyone!

I hope you are doing great. 

I'm driving an Automatic Hyundai Elantra 2013, built in USA. It currently has 70k Miles. Bought used. 

My question or issue is that, my MPG is not close to the EPA 28-32, I changed my spark plugs, checked the tires pressure, it's not overload, use premium gasoline, and I get an average of 23-25 MPG, I have to accelerate a lot to get a higher MPG. I scanned the car, I missed the code, but it indicated one of my cable candels need a change. It has ECO Mode, but when I turn it on, it's even worse, dropping to 17-19 MPG.

Should I try changing the cable or this is expected?

): Love your videos btw, 😀 

Stay safe everybody!