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

[Narcosis]

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.

 

[hardparker]

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.

 

[doublespaces]

What are the pressures you're seeing?

 

[Dino81]

 

[Dino81]

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]

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.

 

[Narcosis]