Diagnostic code web site

[NDW]

Is there a website(s) available to see what the different diagnostic codes stand for on different vehicles? I have a '96 Chevy Suburban that gives me a P1406 Auxillary Emission Control code. Thanks.

 

[Finally got it !]

I think it is a "sticky egr valve" code, but don't quote me on it.

 

[Finally got it !]

Either replace it or you check for carbon build up on the pentile. clean it and it may resolve the problem.

 

[Ulysses]

www.obdii.com

 

[ViperRay]

Newt,
Not sure if you found your answer but my source says "Differential Pressure Feedback Sensor Downstream Hose Off or Plugged".

 

[ViperRay]

Sorry Newt, that was for Ford. Finally Got It got it right...appropriate name.

 

[NDW]

Thanks guys, I'll check those items.