My fuel pump is not turning on so wired a toggle to it and now my battery is dieing. Good battery and alt. I think the ecm is sending to run pump and killing my battery. What should I do . How can I run pump with out ecm trying to.

 

returnless fuel system or does it have a return line? what model year and engine?

 

has a return,
1995 chevy Cheyenne k2500 5.0 tbi