If you’re hearing about the Vance & Hines Fuelpak fp3 fuel management system for the first time, then you’ve got a lot of question about it.
Like what it is and how it works?
As told earlier, this is a device that lets you control the ECU in the bike. It connects to the ECU to allow you to make changes to the system.
Let’s say, you’ve modified the exhaust system in your Harley. There will be a change in airflow which will require you to adjust the air/fuel ratio to complement the modification you made.