I just saw your post about the cool down timer. Can you tell me what ignition wire you powered with the unused output? I having a bit of a battle with one of these. I have a 2008 RAM 2500 and a cool down timer 2. First manual BD released didn't use the fuel pump (trans pump output) so I ran out of fuel first time it got hot enough to run very long. There were a couple issues with the install done by local 4WD shop such that I ordered CD with wiring diagram for the truck. I am holding off further work with this until I get the complete wiring diagram. But if I end up with codes thrown I suspect I'll give up on it rather than try and spoof more signals. I do a lot of remote camping and reliability is the number one goal for the truck. Thanks. dale@archcape.com is my e-mail.