Originally Posted by Lacey1968
I'll take it back by after the New Year to see if I get any codes. Does the analyzer that Auto-zone uses catch all of the fail codes? I know the guys at the Ford shop hook up a laptop and seem to get alot more info. They charge $65.00 for diagnostic fee. Should I trust the Auto-zone codes, or is the 65 money well spent?
AutoZone uses a code reader that will only read pending codes and fault codes. A true scanner will read [mode6] misfire monitors that will show each cylinders activity.
I would still give it a few more miles to set a code.