How to install/wire a kenne bell boost a pump BAP. Pre-fpdm

“I would install the BAP PRE-fpdm. If you install it post fpdm the pcm no longer has full control over the pumps and can cause some tuning issues. There is no disadvantage of installing pre-fpdm. You won't fry the bap this way. I have mine wired pre-fpdm and running full time as I don't use the boost switch that comes with the kit. I set mine to 40% and it's been there for the past 54k miles with no issues. OH and there is not any tuning required if you move the bap to a pre-fpdm configuration.”


This video shows how I wired the Boost a pump BAP into my Cobra. I wish I did an install video, but this was done 3 years ago. Note I wired this up PRE-FPDM (before the fuel pump driver module FPDM) and also I am not running the Hobbs switch (very common). The BAP is wired to be on the entire time and not activated by boost (which is what the hobbs wire and switch would do. I am also not running an upgraded power wire

"I'd add to it that you don't need the kb adj knob. The new ones don't even come with them anymore. The other black wire is connected just like the Hobbs wire is

Most People don't understand how the Boost a pump works. They think they need a knob.

Well back in the old day before fpdm' the bap ran right to the pump and sent 30-100% voltage 8-17v directly to the pump.

In a fpdm setup, the knob should be set to 100 or wires connected with no knob. The fpdm only uses the voltage that is needed based on ecm demand. It's not sending 17 volts to the fpdm unless the pumps are at max anyways."