N54 rail pressure after installing PI & upgraded LPFP on hybrids?

Narcosis

Corporal
Dec 14, 2016
119
64
0
Hudson, WI
Ride
E92
Might anyone have a log on datazap that I can take a look at, after installing PI (MMP & AIC1 in my case, triggered on RPM & TMAP voltage) and upgrading the LPFP (Fuel-it stg 3 in my case)? I'm curious about rail pressure when PI is engaged.
 
Last edited:

hardparker

Specialist
Jan 23, 2018
80
30
0
Ride
f25
I'm N55, so no LPFP sensor, but similarly interested in if the rail pressure is falling when PI in flowing additional fueling. Especially with large batch-fire injector controller setups at higher duty cycle, I'd think it could potentially be an issue.
 

Dino81

New Member
Nov 24, 2016
6
3
0
NW Indiana
29F8FB4A-2254-4162-825A-E8C5883C194E.png
 

Dino81

New Member
Nov 24, 2016
6
3
0
NW Indiana
Id be worried if it was under 1400-1500. Keep an eye on lpfp too. That obviously feeds it. What fuel are you running?
 

Narcosis

Corporal
Dec 14, 2016
119
64
0
Hudson, WI
Ride
E92
It had dipped into the high 900s ONCE prior to the latest LPFP upgrade and powering on the PI, mostly in the 1k-1.5k range. I just logged the first version of an e85 map and once the PI engages rail pressure is 2600-3000.

Thanks for the confirmation, Dino.
 
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