LPF log

prostock3

New Member
Aug 29, 2021
7
1
0
New here, looks like i found a great forum for support.

Does my lpfp look normal? I am running full ethanol, and have twin 450 pumps second pump runs off hobb switch with port injection. But i did not upgrade my fuel pressure regulator on the tank its still the stock one. Is the fuel pressure bouncing up and down due to this or maybe another reason?


 

PFS

Corporal
Nov 19, 2018
185
234
0
Ride
335i
Oscillations in LPFP are normal, there are things you can do to mitigate them but as long as they don't dip too low I'm not sure I've really seen it turn into a better performing vehicle. An external FPR is a nice way to circumvent the stock limitations but you still get some oscillations in most setups.