Listen. I have a 2015 veloster turbo. I bought it at 68000 miles it now has 82000 miles. I have a really rough idle, and and it's gotten louder now. Like I can't hear the cold air intake I guess. I'm not good with cars so bear with me. It also feels like it doesn't want to go or accelerate. Does it need a tune up or just some fuel injector cleaner? And if I need the cleaner what is the best kind? Let me know everything i need. I get paid today so I will go nuts on this car.