New to boost a pumps. How do I know it's on and working? I did a log and noticed that fuel pump % and fuel pump duty cycle are the same as they were before the install. There is no light or on/off switch. It's a VMP plug and ply unit.

 

Well that's easy.. you cross your fingers, duh!

No indicator light on VMP? My JMS had one that I would double check every now n then.

Did you install the bap as a preemptive measure? Or were you running out of pump?
Try logging your fuel lift pump pressure and see if it's any higher and/or not dropping.

 

Hah, but no light on this unit...added the pump as a security measure as I do run e85 and nitrous. Plan is to bump the shot to 150 on e85. I see pretty close to 7600 rpm at the track. I did have one popular mustang tuner review a log a while back and he said he would not write a tune unless I added a Bap and injectors. He said I was running out of pump. I asked what indicated that as my trims were perfect and he didn't answer.