[marvix]

Before changing high pressure pump i will try to ask if anybody has similar problem.

After start car, no mather if is cold,warm, stoped for 5minutes or....
First 3,4 WOT pulls droped rail pressure.. Then i can 100x WOT and hold min 1800psi... if i dont pull pedal to 100proc, pressure holds everytime. Very disapointing for me... It happens on every map i try, not on stg0 so much (there drop is to 1500psi not to 800 like 18, 19, 20, 21, 22psi boost target maps , MHD OTS, custom)

Car is n54 FBO, custom small hybrids, 3,5bar tmap ..... try to do custom map with tuner

Heres some logs from car remaps process >

stg0 map stock with MHD installed >>

https://datazap.me/u/cr4sh/log-17157...0&data=3-18-19

2x bad pulls then 1800psi and start working well > >

https://datazap.me/u/cr4sh/log-17158...0&data=3-22-23

good pressure 23psi target > >

https://datazap.me/u/cr4sh/log-17158...0&data=3-22-23


what can i try? No vakum leaks, injector index12, car run smooth in both causes, no error codes...

[marvix]

cahnge hpfp, throttle body, injectors... same problem

nice fck gremllin,,,