O2 sensor
RavynGyrl,
First, welcome to the forum. You can get alot of info from your local auto parts. Usually, places like O'reilly auto or Autozone will give you the code, and a printout of the parts location and how to replace it. Just as an example, my friend had an O2 sensor go out on his Toyota truck. It was located just under the passenger door on the exhaust pipe. I literally took about 5 mins to replace. Total cost was about $100 for the part if I remember correcty. If anything, it was cheaper, but not more than $100. Point is, with a little help, your husband should be able to fix it with just a couple of hand tools and a socket set. I can tell you that this site can help you get it done. good luck.