Please Help Me

I wish I could take it back. I can't. First of all its like three hundred and something miles up there and I don't want to drive the car that far. Secondly, all they are going to say is startup warranty ran out when you left. Then they will proceed to make me spend money on something I could have fixed myself. I'm just tryin to save myself the time and money. Thats why I'm asking you guys.

I checked the ECU this morning. No codes. But when I give the car gas it still sputters like its not getting gas. Could the coolant sensor have anything to do with it? What about the main relay? Or maybe its the injectors?