Overboost

[pysical]

This is a N55 car but that section doesn't get much views and the same issue applies to N54. But got a friend who is have overboost issue since he took Jb4 off.

2C56 - Charging pressure control, plausibility Pressure too high.
2C58 - Charging pressure control: Switch-off as consequence

Here is 3rd gear manual mode
https://datazap.me/u/pysical/dan-manual?log=0&data=3-11

I am going to take a look at the boost solenoid and vacuum lines but any other possible things to check?

 

[Rcboosted2007]

Did you do a waste gate test? There plenty of procedures floating around

 

[R.G.]

This is a N55 car but that section doesn't get much views and the same issue applies to N54. But got a friend who is have overboost issue since he took Jb4 off.

2C56 - Charging pressure control, plausibility Pressure too high.
2C58 - Charging pressure control: Switch-off as consequence

Here is 3rd gear manual mode
https://datazap.me/u/pysical/dan-manual?log=0&data=3-11

I am going to take a look at the boost solenoid and vacuum lines but any other possible things to check?

That's a strange looking log. 21psi and throttle position sticks at 22% with accel position at 100% for 1k RPM

Waste gate seems like it's stuck closed

 

[pysical]

Forgot about this thread but it was a boost solenoid. Thanks to twisted tuning.

 

[doublespaces]

Thank you for following up. A Q&A section will be rolling out soon. You'll be able to vote on answers etc.