Bmw fuel pressure

Darren Technician Wisconsin Posted   Latest  
Resolved
Driveability
2012 BMW 128i 3.0L (N51B30A) 6-spd (GA6-L45R)
Long Crank

No codes.

Is fuel pressure supposed to climb with just key on?

Is fuel pressure supposed to hold after ?

My bmw doesn’t do either one.

It starts as soon as you hit proper fuel pressure,

just takes a few seconds to get there.

This Bmw has a fuel relay and separate fuel 

module.

Looking for advice.

0
Manuel Diagnostician
New Jersey
Manuel
   

Bmw prime fuel pump with driver door open . Do system scan . If I’m fact you really have n51 engine pull fuel pump out check for busted leaking hose off fuel pump. bmw will tel you must replace tank but can repair yourself.

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Helpful
Darren Technician
Wisconsin
Darren
 

Roger that, thank you!

0
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Darren Technician
Wisconsin
Darren Resolution
 

Internal fuel leak in tank, drivers side assembly. I think bmw calls it a regulater.

+2
Resolution Ð Awarded
Thanks