have a friend that was getting carried away with a little bit to big of a program http://www.dieselplace.com/forum/smileys/smiley4.gif and now gets P0726. says he goes back to stock and the tranny still wont give him 4th or 5th, but 1-2-3 are there. where can i go on the net to see what the codes mean??

someone has to know where to get them. there are atleast 2 places. i have seen them here just cant remember where and no luck with the search either. anyone? http://www.dieselplace.com/forum/smileys/smiley5.gif

I know where I can get them but I don't know where you can on the internet.


DTC P0726 sets when the TCM detects a large unrealistic engine speed or if excessive noise is present in the engine speed sensor circuit.


If you have any more I can tell you what they mean.

I'm pretty sure the shop manuals have a list of all the codes, too.