ok so ive posted before about my bird. it stalled about 2 seeks ago and wont start now the check engine lights on i replaced the starter im getting fuel into the lines and seems to be getting start. the security light isnt on but the check engine one is i uses my actron CP9001 gm scannerand its only coming up with code 12 nothing else but the check engine light still comes on. i must say it is on blocks and she seemed to run fine whe she was on the ground could that be a problem? could it be something to the distributor or mix ratio silinoid i dont know pleas someone help