First, don't replace parts until you know what is wrong with it. Otherwise, you'll end up spending a ton of money for nothing.
Has the check engine light come on? Have you checked fuel pump pressure? Have you checked to make sure there are no vacuum leaks? Finally, have you checked to see if the catylatic converter isn't plugging?
Let me know.
Tuesday, December 1st, 2009 AT 8:17 AM