Idol problems car starts then dies.

My 3.3litter V-6 starts but then dies. I have to give it a little throttle to start it. It will run as long as I bearly give it some gas and will stay running until I let off the throttle or if I give it to much throttle but starts right back up will run then just die like I cut the key off or something Just had new baby and stuck at moms house really need to get home help please.