[michostar21]

Hi everyone, I need help on my 2012 BMW 528i (N20) engine 2.0

My car got repaired due time chain guides went bad. Previously to that to happen , the car was turning off very often and stalls shake etc when driving it because after the repairs , engine was running very good while car in idle . code from computer read bank 1 too rich
All happens at the same time . I removed the air ducts housing and saw the pipe that go to te turbo ( 10 mm ) but was not tight enough, anyways I end up replacing that pipe and the one above that have some connections coming out from valve cover

Problem continue , I connect my scanner again and few codes were present , bank 1 too rich , low pressure of fuel , misfires etc
I opened the oil cap , I smelled strong gasoline odor , i decide to replaced injectors , new spark plugs, new vacuum pump with new solenoid , new fuel pump ( the one from the back seat , also the high pressure fuel pump , I had to replace for a new connector
I replaced as well the sensor on the fuel rail
There’s no more gas smell in the engine
Error code still shows low fuel pressure at cold start , and fuel low pressure
I’m going crazy now
I don’t know if is the fuel module , I don’t know if there’s any fuse before the wires that go to the higher pressure fuel pump
I don’t know if I have to program something
Any idea ?
Car now struggling to start , once is on , car rpm stays at 1000 and doesn’t not go bellow as it shoul
Also miss fires in all cylinders and inyector cut off error codes are present as intermittent

[msultani]

Hi, did you ever figure it out? I have something similar and still stuck