I put a Industrial injection pump on and I want to hook up my chip again. Its an older bd power five stage but hey it does what I want it to do, better milage and power gain. Now the problem is that I don't know witch wire to use on the back of pump, they r all black. I need to get this hooked back up so please help.

 

There should be 2 wires. IIRC its the wire closest to the engine...

 

Thank u lovin. What could happen if its the wrong wire?