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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.
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.