My Soul was running a little rough and I got a check engine light. Uvo said to bring it to the dealer. Hah, no way. After a little research, I decided to try some fuel injector cleaner. Low and behold my baby runs smoooothh and the code has not come back!!! I used STP Super Concentrated FI Cleaner. My gas cap is also not clicking so a new one is on the way and I'll change the oil soon.