Need help after programming new ecm

[Rawze]

(07-12-2022 )tree98 Wrote:  Did you create a work order with insite to save the settings from the old ECM ? C a l t e r m doesn't get them all, you need a backup with insite as well.

actually, calterm does back up everything including all the truck settnigs.

-- someone must have done something wrong if it is an issue with the programming and not something else.

- Did you verify the part#'s were exactly the the same between the new ecm and the old one?.. There are different revisions of some of the newer ecm's and some people have said it can possibly lead to issues, but I have not verified this myself.

is it just the speedo?.. or other components.. and why did you think you had a bad ecm to begin with?.

Maybe you might be chasing other wiring or truck related ghosts and not a bad ecm all along?


Also0--- if the vehicle is a paccar product (Peterbilt, kenworth, etc).. then unplugging all the batteries and letting the cab controller die, takes a good 20-30 minutes, does wonders for them sometimes. Those paccar cab and dash controllers are notorious for getting glitches in them and killing the power to them is the onyl way to fix it sometimes.
ref:
http://rawze.com/forums/showthread.php?t...0#pid59180
http://rawze.com/forums/showthread.php?t...2#pid10452
http://rawze.com/forums/showthread.php?t...2#pid18292
http://rawze.com/forums/showthread.php?t...3#pid20823
http://rawze.com/forums/showthread.php?t...6#pid28826
http://rawze.com/forums/showthread.php?t...8#pid28838