Own a 2006 H2 and check engine light came on. Had OnStar do a diagnostic check and they came up with these error codes: P0053, 54 59, 60, P00200, 230, 443 and U0107. She is sputtering and acting like she will cut off when put into drive. What are these related to and what cost might be incurred if a dealer corrects the problems? Thanks in advance!!!