Hi.
I'm planing to use the RS6 J538 Fuel Pump Control Module in my S8-97 to control two Walbo 450L fuelpumps.
I will control J538 with my standalone ECU = MaxxECu Pro
First question:
Is J538 a good functioning unit? or is it often a problem with these?
Second question:
What does the abbreviation FB mean on the cable that is in the red circle in my picture?