Notices
 

  

User Tag List

Thread: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine

Page 1 of 2 12 LastLast
Results 1 to 10 of 13
  1. P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #1
    Join Date
    Apr 2014
    Location
    A, A
    Posts
    36
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Hello everyone
    I've got a seat leon fr 2.0 tdi cr engine
    Now i've got a fault code of p0238 map sensor signal high
    I've replaced the part and same issue
    Replaced again and still same issue
    Mechanics did some live data readings
    And the issue seems to be when i let go of the throttle
    On idle its fine, but as soon as i drive, the map shows excessive pressure (2193mbar) and enters limp mode
    On idle when revving the engine (only goes to 2.5/3k rpm), the boost levels rise as they should matching expected boost to about 13-1400mbar, but when i let go of the throttle they jump up to about 1600mbar before coming back down
    Now when driving, if i floor it or drive very eco with a light foot, the boost rises and just spikes as i let go of the throttle
    It happens even in reverse as well, and thats the engine only revving to 2krpm max, it just instantly goes into limp mode
    The dpf has been removed from the car prior to me purchasing it, the egr is still intact, and the maf and egr both read as expected on live data readings, however can't test them on a drive as the car will just go into limp mode after some throttle

    What could cause the manifold pressure to become too high when letting go of the throttle?

    Once it does read as signal too high p0238, live data readings on vagcom show the map pressure as approx 2193mbar

    The wiring looks intact, but i've noticed a few others have repair looms fitted to the older leons, is that the case for the facelift mk2 as well?

    Anyone around Sheffield to have a look at it for me?, or know of any good specialists to take it too or know what i can do next as it's really annoying me now
     
    0 0 0
     

  2. P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #2
    Join Date
    Jun 2016
    Location
    Glasgow
    Posts
    116
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)
    Quote Originally Posted by Shakeeb_5 View Post
    Hello everyone
    I've got a seat leon fr 2.0 tdi cr engine
    Now i've got a fault code of p0238 map sensor signal high
    I've replaced the part and same issue
    Replaced again and still same issue
    Mechanics did some live data readings
    And the issue seems to be when i let go of the throttle
    On idle its fine, but as soon as i drive, the map shows excessive pressure (2193mbar) and enters limp mode
    On idle when revving the engine (only goes to 2.5/3k rpm), the boost levels rise as they should matching expected boost to about 13-1400mbar, but when i let go of the throttle they jump up to about 1600mbar before coming back down
    Now when driving, if i floor it or drive very eco with a light foot, the boost rises and just spikes as i let go of the throttle
    It happens even in reverse as well, and thats the engine only revving to 2krpm max, it just instantly goes into limp mode
    The dpf has been removed from the car prior to me purchasing it, the egr is still intact, and the maf and egr both read as expected on live data readings, however can't test them on a drive as the car will just go into limp mode after some throttle

    What could cause the manifold pressure to become too high when letting go of the throttle?

    Once it does read as signal too high p0238, live data readings on vagcom show the map pressure as approx 2193mbar

    The wiring looks intact, but i've noticed a few others have repair looms fitted to the older leons, is that the case for the facelift mk2 as well?

    Anyone around Sheffield to have a look at it for me?, or know of any good specialists to take it too or know what i can do next as it's really annoying me now
    Have you checked the wiring? Loom could be shorting on engine torque.

    Can you get a look at the diverter valve adjustment? Also check that the diverter valve holds vacuum.
    Achieve true rolling motion with our Hunter Hawkeye Elite Aligner - Learn More.
    MB Jarvie Ltd - Your Independent Audi Garage Glasgow | MB Jarvie Website | Facebook


     
    0 0 0
     

  3. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #3
    Join Date
    Apr 2014
    Location
    A, A
    Posts
    36
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Hello
    He said he checked around the connector and it seems fine
    But the map sensor on this engine is in an awkward position to properly check
    Erm is there a common place for breaks?, and where does the wire route through to the ecu?, or should i just get him to follow the wires and see
     
    0 0 0
     

  4. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #4
    Join Date
    Jun 2016
    Location
    Glasgow
    Posts
    116
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)
    Quote Originally Posted by Shakeeb_5 View Post
    Hello
    He said he checked around the connector and it seems fine
    But the map sensor on this engine is in an awkward position to properly check
    Erm is there a common place for breaks?, and where does the wire route through to the ecu?, or should i just get him to follow the wires and see
    In fact. Go straight to diverter. Let me know if holds vacuum and if connection to turbo looks okay (you'll need a mirror for this).
    If diverter doesn't hold vacuum renew with oem repair kit.
    Achieve true rolling motion with our Hunter Hawkeye Elite Aligner - Learn More.
    MB Jarvie Ltd - Your Independent Audi Garage Glasgow | MB Jarvie Website | Facebook


     
    0 0 0
     

  5. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #5
    Join Date
    Apr 2014
    Location
    A, A
    Posts
    36
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Do diesels have a diverter valve?
    Connection to turbo is fine,
    Prior to replacing the sensor the first time i could drive around some times for a day without the fault occurinf, engine off and back on and fault was disappearing, now its there all the time as soon as i try to drive
     
    0 0 0
     

  6. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #6
    Join Date
    Jun 2016
    Location
    Glasgow
    Posts
    116
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)
    Quote Originally Posted by Shakeeb_5 View Post
    Do diesels have a diverter valve?
    Connection to turbo is fine,
    Prior to replacing the sensor the first time i could drive around some times for a day without the fault occurinf, engine off and back on and fault was disappearing, now its there all the time as soon as i try to drive
    They do. Vacuum control via solenoid application.
    Achieve true rolling motion with our Hunter Hawkeye Elite Aligner - Learn More.
    MB Jarvie Ltd - Your Independent Audi Garage Glasgow | MB Jarvie Website | Facebook


     
    0 0 0
     

  7. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #7
    Join Date
    Apr 2014
    Location
    A, A
    Posts
    36
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Could the n75 valve be causing the issue?, i doubt it but thought i'll ask
     
    0 0 0
     

  8. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #8
    Join Date
    Jun 2016
    Location
    Glasgow
    Posts
    116
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)
    Quote Originally Posted by Shakeeb_5 View Post
    Could the n75 valve be causing the issue?, i doubt it but thought i'll ask
    Boost pressure valve is worth looking at, not before DV.
    Achieve true rolling motion with our Hunter Hawkeye Elite Aligner - Learn More.
    MB Jarvie Ltd - Your Independent Audi Garage Glasgow | MB Jarvie Website | Facebook


     
    0 0 0
     

  9. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #9
    Join Date
    Apr 2014
    Location
    A, A
    Posts
    36
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    I'll get them both checked out, where is the diverter valve located? Quick google search and i can't seem to find any info on it
     
    0 0 0
     

  10. Re: P0238 manifold boost pressure high Leon Fr mk2 facelift cr engine 
    #10
    Join Date
    Jun 2016
    Location
    Glasgow
    Posts
    116
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)
    Achieve true rolling motion with our Hunter Hawkeye Elite Aligner - Learn More.
    MB Jarvie Ltd - Your Independent Audi Garage Glasgow | MB Jarvie Website | Facebook


     
    0 0 0
     

Page 1 of 2 12 LastLast

Similar Threads

  1. intercooler inlet manifold boost clip
    By robert1z in forum 1.9TDi - Engine
    Replies: 2
    Last Post: 07-04-2015, 02:05 PM
  2. Leon boost
    By Simon@DTUK in forum Leon
    Replies: 0
    Last Post: 30-06-2014, 10:04 PM
  3. Replies: 1
    Last Post: 06-06-2014, 09:50 AM
  4. 00575 manifold absolute pressure sensor, loose of boost and black smoke.
    By shaiboy_uk in forum Passat - B5 Forum - 1997 -2005
    Replies: 7
    Last Post: 05-04-2009, 12:31 PM
  5. boost pressure there but not into engine
    By zorgman in forum Touran - Sharan - Caravelle
    Replies: 10
    Last Post: 11-01-2008, 04:41 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  




  


Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -