RED-SI-BOY

At vehical start up the car turns over but wont start, if you continue to turn it over and give it a little gas it will start but in order to keep it started you must continue to give it gas. i dont have ant DTC's and my Mel light hasnt come on it kind of sounds like im missing but havn't had a chance to get my hands on a scan tool if any of you guys have any suggestions please let me know will greatly appreciate it.