"no Bus" code
 

I just recently put on an edge box on my 99 cummins. Ran great for a few days. Well today I ran into the store and came right back out and went to start it up and my airdog wouldnt kick on, and it said "No Bus" on the odometer... any ideas to help me start looking??

What kind of Edge? Comp/Juice/EZ? Try disconnecting the 3 wire weatherpack connector under the hood that the Edge plugs into. That is a CAN Bus connector.

It is a juice.

OK, I still think you should try unplugging the Juice 3 wire connector under the hood for the CAN Bus.

are you talking about the harness for the edge? or something else?

The Edge harness. 3 pin connector all in a row. Connector is behind the fuel filter.

will that mean my edge box is bad?

There is that possibility. Unplugging it will determine if it is the Edge, or in your truck.

earlier today I unplugged it and my pump would work. But then just a little while ago I unplugged it and pump still didnt work..

When won't the pump run? Just with the key on? It will only run for a second when the key is turned on, then won't run again until you crank. If you bump the starter but not start the engine, it will run for about 20 seconds.