2nd Gen R56 Cooper S Lost Power Autocrossing Today

Discussion in '2nd Generation: 2007+ R55 through R61' started by emptyo, May 25, 2014.

Tags:
Most Liked Posts
  1. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #1 emptyo, May 25, 2014
    I did a PCA Autocross event today (12 runs) and after run #9 I lost serious power. It was almost as if my turbo didn't work anymore...I just lost all my boost. Could I have popped a hose off or something?

    I'm new to turbos, so I'd love some help troubleshooting.

    Thanks!

    m
     
  2. MCS02

    MCS02 Moderator
    Staff Member Articles Moderator Supporting Member

    Jul 31, 2009
    11,176
    6,176
    113
    Male
    Ratings:
    +7,891 / 10 / -3
    #2 MCS02, May 25, 2014
    I can't help but I'll give you a bump. Someone will be along that can help.
     
  3. Dave.0

    Dave.0 Helix & RMW Powered
    Lifetime Supporter

    May 4, 2009
    25,021
    13,497
    113
    Burbs of Philly, PA
    Ratings:
    +14,644 / 10 / -4
    #3 Dave.0, May 25, 2014
    Heat soak? I have no idea. I am a Supercharger and Methanol guy and I don't have heat or carbon issues.
     
  4. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #4 emptyo, May 25, 2014
    Lol...thanks for posting that you DON'T know. ;)
     
  5. Metalman

    Metalman Well-Known Member
    Lifetime Supporter

    Sep 29, 2009
    12,714
    7,659
    113
    Ex-Owner (Retired) of a custom metal fab company.
    Columbus, Ohio
    Ratings:
    +7,916 / 1 / -0
    #5 Metalman, May 25, 2014
    You probably didn't pop a hose off because it would have generated an error code...

    You may have torn the bladder in the blowoff recirculating valve in the turbo.... But that should have generated an error code.....

    Soooo.... Lost power but no codes thrown???
     
  6. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #6 emptyo, May 25, 2014
    How do I check if there are codes?
     
  7. MCS02

    MCS02 Moderator
    Staff Member Articles Moderator Supporting Member

    Jul 31, 2009
    11,176
    6,176
    113
    Male
    Ratings:
    +7,891 / 10 / -3
    #7 MCS02, May 25, 2014
    If you don't have a OBDII reader run it to Autozone they can read it for you.
     
  8. DneprDave

    DneprDave Well-Known Member
    Supporting Member

    Oct 23, 2010
    2,952
    1,500
    113
    Engineer
    Pacific NW
    Ratings:
    +1,721 / 0 / -0
    #8 DneprDave, May 26, 2014
    Or buy an OBD2 reader, they aren't that expensive and are a very useful diagnostic tool.

    Dave
     
  9. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #9 emptyo, May 26, 2014
    UPDATE: Checked under the hood. Cold air intake was completely disconnected. Friend brought over OBD II reader. Was throwing a code that I was running lean. (Presumably because of the air intake). Cleared the code, hopeful that would bring back the boost, to no avail.

    No more codes, but I'm only getting 2-3 psi of boost under full load.


    Not sure where to turn next.
     
  10. tallguymini

    tallguymini New Member

    Jan 6, 2014
    8
    2
    0
    Ratings:
    +2 / 0 / -0
    #10 tallguymini, May 26, 2014
    Your in limp mode
     
  11. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #11 emptyo, May 26, 2014
    Yep, definitely in limp mode. Need Viagra.
     
  12. Metalman

    Metalman Well-Known Member
    Lifetime Supporter

    Sep 29, 2009
    12,714
    7,659
    113
    Ex-Owner (Retired) of a custom metal fab company.
    Columbus, Ohio
    Ratings:
    +7,916 / 1 / -0
    #12 Metalman, May 26, 2014
    There are all kinds of fittings / clip rings / hose clamps for the rigid and flexible hoses from the turbo to the intake manifold..... Any one of them could possibly have come loose.... There is also an area back by the firewall (passenger side of the engine) that can rub and wear a hole in the rubber hose...

    Sounds like you are getting some pressure.... Maybe a small hole that blew out on your aggressive track day....

    Don't overlook the possibility of the diverter valve on the turbo getting ruptured... It sounds like this is your problem... Unfortunately you need to take it apart to verify this.. Follow the hoses from the turbo first.... Make sure everything is tight... Still have the problem... Then go for the diverter valve... They go for something like $75 if I remember...:Thumbsup:

    Read here...http://www.motoringalliance.com/forums/cooper-s/12391-blow-off-valve-issues.html

    [​IMG]

    Happy Hunting...:D
     
  13. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #13 emptyo, May 27, 2014
    Alright, thanks for the heads up! I'll check it out.
     
  14. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #14 emptyo, Jun 10, 2014
    Update!

    My cat had separated from the turbo, due to a really shoddy re-install of the stock muffler by the PO. The cold air intake tube also was completely disconnected. Needless to say, there were air leaks all over the place. I also had the valves walnut blasted, and the ECU updated to current firmware.

    Check engine light is off, and the car is RIPPING once again!

    Now...time for that LSD...
     
  15. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #15 emptyo, Jun 10, 2014
    double post...sorry.
     
  16. Metalman

    Metalman Well-Known Member
    Lifetime Supporter

    Sep 29, 2009
    12,714
    7,659
    113
    Ex-Owner (Retired) of a custom metal fab company.
    Columbus, Ohio
    Ratings:
    +7,916 / 1 / -0
    #16 Metalman, Jun 10, 2014
    I'm surprised you didn't report an exhaust leak.... That would have been a strong indicator in helping to diagnose your problem...
     
  17. MCS02

    MCS02 Moderator
    Staff Member Articles Moderator Supporting Member

    Jul 31, 2009
    11,176
    6,176
    113
    Male
    Ratings:
    +7,891 / 10 / -3
    #17 MCS02, Jun 10, 2014
    Hay man don't do LSD and drive.

    Just say in :devil:

    [ame="http://m.youtube.com/watch?v=ZqXmBy1_qOQ"]http://m.youtube.com/watch?v=ZqXmBy1_qOQ[/ame]
     
  18. emptyo

    emptyo Member

    May 6, 2014
    46
    35
    18
    Podcaster
    San Diego
    Ratings:
    +35 / 0 / -0
    #18 emptyo, Jun 10, 2014
    Well...I didn't know I had one until we did a smoke test. But now I do. :) Now the car is ripping!
     

Share This Page