E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Help diagnose and fix codes n55: 2C57 and 28A0



Reply
 
Thread Tools Search this Thread
      07-17-2024, 03:08 PM   #1
gabewardd
New Member
gabewardd's Avatar
0
Rep
7
Posts

Drives: bmw 335i 2011 m sport
Join Date: Jul 2024
Location: Colorado

iTrader: (0)

Help diagnose and fix codes n55: 2C57 and 28A0

- [ ] 2c57 Charging pressure control, plausibility pressure too low
- [ ] 28A0 throttle valve opening absolute pressure intake pipe pressure too high

Hello everyone,
Over the summer I set a goal to fix all my codes. These are the last two and I’m super excited to fix them. I read a few forums about 2C57 being a possible boost leak or something so I got the boost pressure solenoid. I’m having trouble finding tutorials on how to install? I also have a valve cover gasket leak and I read that could be a problem too. Please let me know thanks!
Appreciate 0
      07-29-2024, 07:25 PM   #2
david769
New Member
0
Rep
12
Posts

Drives: 335i
Join Date: Sep 2023
Location: sydney

iTrader: (0)

Had same 2c57 swapped out https://www.fcpeuro.com/products/bmw...id-11747626350 went away
Appreciate 0
      08-06-2024, 03:34 AM   #3
wrevilo
Private First Class
73
Rep
140
Posts

Drives: 2010 E92 335i N55 6MT
Join Date: Feb 2023
Location: Wiltshire, UK

iTrader: (0)

Maybe smoke test the intake system to see if there are any air leaks?
Appreciate 0
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 11:59 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST