I am having an issue that I need help with. My battery keeps dying (this is the replacement battery so I dont think that the battery is the problem). I tested the alternator by pulling the pos cable off the battery and the car died,.... Bad alternator right?,..... WRONG,... I took the alternator down to Auto zone and it tested out fine. The only other thing I can think of it being is the wire going from the alternator to the battery is cut or it is arcing on something or there is a wiring demon somewhere under my hood. Before I switched batteries (and before I used the ELD input for my wideband (HONDATA)) I was getting a CEL and it was for the ELD.

please help

 

Check your main ground.