The dreaded check engine light came on today, so I hooked up the Durametrics software diagnostic tool to see what was up. Surprisingly there are no fault codes showing in any of the diagnostic categories, yet the CEL persists. This leads me to wonder how comprehensive the Durametrics software really is. It must be missing something. I have the latest software version (5.1.3) that's available from the Durametrics Web site.
Anybody have any clue why there would be a CEL without fault codes?
Anybody have any clue why there would be a CEL without fault codes?