89 gtc 2.2

hey i need som help i have a 89 lebaron gtc 2.2 turbo it has new computer and vacumme lines but wont start unless you give it a little gas then if you let off it will die every now and then it will stay running but it will run rough when i try to drive it it will cut out and then pick back up one of my friends said it is a safty thing but i dont know can someone help me out thank you

i have codes 13 14 15 can anybody help i would like to get it running by this weekend so i can take it to the track