Hello, I have a problem. E89 Z4 N54 installs stage2.5 walbro 535 lpfp, how does he connect it? I found that some people are connecting (white and black connection), and some people are connecting back (white and red connection). You can refer to my picture.
Questions about upgrading N54 to walbro 535 LPFP
- Thread starter TOR COILS
- Start date
Brown is always negative (ground) on E-Series cars, not sure why anyone would be wiring the positive of the fuel pump to ground.
I mean, I would assume even if it sounded like the pump was running, it's probably running backwards wired like that.
I mean, I would assume even if it sounded like the pump was running, it's probably running backwards wired like that.
