Join Date: Oct 2005
Location: Northeast Ohio, USA
Re: Engine Problems
Code readers are worth their weight in gold. Even when my car is under warrantee I plug it in to see what codes are stored so I know what's going on. Then if the dealer says something that sounds stupid I can call his bluff on it. I also used to be an Auto Tech long ago so I am rather familiar with things.
Sometimes the code can narrow it down to a single component and knowing that component will let you know exactly what you need to do. Sometimes it just give a starting point.