Car iddles up when starting then dies

Hi Kristen. I follow to what you have said and my advise is that since you have the check engine light on,the best and easy procedure is to find a scanner and connect it to the diagnostic socket which is on your vehicle somewhere under the dashboard. On doing so surely you will get the fault causing your engine to have high revs and then drop to dead. Without be completely positive might you have either broken cracked vacuum hose,or very dirty throttle and needs cleaning.
wish you the very best.

Need to get a diagnostic test with an OBDII Scanner. You may need to have it towed into a shop for this service or if you have any friends/relatives that own one, this is the place to start. Too many things could be wrong without having a point to start at.