Engine Malfunction

[Ladydragonz]

I will post my codes first.

2DEB DME: Power management, vehicle electrical system
30FE DME: Turbocharger, boost pressure too hight
3100 DME: Boost-pressure control, deactivation

This issue has appeared only 3 times, all while at wide open throttle. Yesterday I hit the Start/Stop button 4 times while driving to reset it.
The diagnostic checked the fuel pump no fault detected.

Here are a few other codes I pulled while at my buddies shop, could be related to my SOS Call System Malfunction.

D904 CAS: K-CAN line fault
A6CF JBE: AUC sensor


My 1 is beginning to look like a money pit to both my bf and family :/ they don't understand the love I have for it. Just replaced my upper radiator hose for the second time yesterday.....

[Ladydragonz]

UPDATE since no one bothered changed a solenoid that looked corroded issue gone.

[juld0zer]

If it's the solenoid valve above the exhaust manifold, those are failing quite frequently now. Similar symptoms. Corroded though?

[chadillac2000]

Are we talking boost solenoids? I'm approaching 80,000 miles and even though I'm hitting my boost targets fine, I'm keeping my eyes on logs to make sure they stay healthy.

[Ladydragonz]

Originally Posted by juld0zer

If it's the solenoid valve above the exhaust manifold, those are failing quite frequently now. Similar symptoms. Corroded though?

The connection to the solenoid was quite corroded, replaced the entire solenoid. Lil beast is driving like a champ.

[Ladydragonz]

Originally Posted by chadillac2000

Are we talking boost solenoids? I'm approaching 80,000 miles and even though I'm hitting my boost targets fine, I'm keeping my eyes on logs to make sure they stay healthy.

Yep, exactly what I'm talking about. Just check the connections too! I should have just replaced both of them as a preventative but the other one looked fine. My car is pushing 151,000 so you should be fine....for now

[brytom]

Are you talking about vacuum to electric wastegate actuators? Pair of them sit on a bracket above the exhaust manifolds?

[Ladydragonz]

Originally Posted by brytom

Are you talking about vacuum to electric wastegate actuators? Pair of them sit on a bracket above the exhaust manifolds?

Boost solenoid/pressure converter is what I replaced, 11747626350.

[brytom]

Originally Posted by Ladydragonz

Boost solenoid/pressure converter is what I replaced, 11747626350.

I've replaced a few of those over the years. I wouldn't say it's as common as injectors or HPP on an N54 but my usual first go to for boost pressure issues.
I assume you went ahead and replaced both?
Common name for them is an EPDW or electro pneumatic pressure converter. Uses signal from the DME to regulate vacuum supply to the wastegate.
Use the same thing on N55, although an issue on those are too, it isn't as frequent.

[Ladydragonz]

Originally Posted by brytom

I've replaced a few of those over the years. I wouldn't say it's as common as injectors or HPP on an N54 but my usual first go to for boost pressure issues.
I assume you went ahead and replaced both?
Common name for them is an EPDW or electro pneumatic pressure converter. Uses signal from the DME to regulate vacuum supply to the wastegate.
Use the same thing on N55, although an issue on those are too, it isn't as frequent.

Only replaced the one that was corroded the other one seemed to be in good condition. Thanks for that info