2nd Gen R56 Cooper S Sputtering

Discussion in '2nd Generation: 2007+ R55 through R61' started by itsmewutup, Nov 14, 2012.

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  1. itsmewutup

    itsmewutup New Member

    Apr 11, 2012
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    Thank much for all the info. Next is the o2 sensor. Where exactly is the downstream located?
     
  2. grodenglaive

    grodenglaive New Member

    Apr 3, 2010
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    Are you saying you solved the p115c problem just by changing the fuel filter?:mad2::mad2::mad2:
     
  3. itsmewutup

    itsmewutup New Member

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    No that was actually just a loose hose clamp connecting to the turbo.
     
  4. grodenglaive

    grodenglaive New Member

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    ok I feel better now:eek: I checked all hoses and clamps as did the dealer.
     
  5. itsmewutup

    itsmewutup New Member

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    So newest update. Although the sputtering is gone with the help of the fuel filter change. It still didn't have the power that it use to. I decided to really push it off a stop light on my way home from work this morning and it lost all power whatsoever and threw my p0420 code which I know has to do with the post cat O2 sensor. But I didn't think that would make it run like it did. Possible I have a bad cat?
     
  6. Nathan

    Nathan Founder

    Mar 30, 2009
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    Maybe a clogged cat?
     
  7. Jason Montague

    Jason Montague New Member
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    :cornut: Nathan, I remember that I promised to stay on the straight and narrow but boy could I make something out of that statement.:lol::lol::lol::Thumbsup:

    Jason
     
  8. itsmewutup

    itsmewutup New Member

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    That's what I was afraid of :( it does feel like it getting alot of back pressure.
     
  9. itsmewutup

    itsmewutup New Member

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    So any suggestions on cats that aren't $1000?
     
  10. Jason Montague

    Jason Montague New Member
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    :cornut: Canabalise one from a MINI in a wrecking yard. No guaranties on quality/longivity though.:Thumbsup:

    Jason
     
  11. Crashton

    Crashton Club Coordinator

    Jun 4, 2009
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    The trouble you may run into is it is against the law to sell a used converter & even to install one. Odd, but true. You may get lucky & be able to buy one anyhow. :fingerscrossed:
     
  12. Jason Montague

    Jason Montague New Member
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    :cornut:Drive(or trailor it) over the Canadian or Mexican border, which ever is closer, do the deed and drive back home. Nothing was done in the US. It is similar to what's going on with the Original Minis that are coming in now a days to the US. They are getting titled(oft times as antiques or older than the truly are. They don't seem to be on the radar yet but certainly great finesse is advised) and no one is getting in trouble so far.:Thumbsup:

    Jason
     
  13. itsmewutup

    itsmewutup New Member

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    I was actually thinking more along the lines of a delete....??
     
  14. Jason Montague

    Jason Montague New Member
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    :cornut: I only hope that you have a very friendly uninformed shady inspection station OR go to Oklahoma they don't have vehicle inspection any more.:Thumbsup:

    Jason
     
  15. Dave.0

    Dave.0 Helix & RMW Powered
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    Replace the rear O2 before you go CATLESS. You can also try and stall you car by blocking the exhaust with a few towels to see if you have an exhaust leak.

    I really don't think you have a bad cat.
     
  16. itsmewutup

    itsmewutup New Member

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    I live in KY, an inspection free state thankfully. Moved back here after livin in NY state for 4 years where inspection is quite picky.





    I do plan on changing the sensor first as well as checking for leaks just haven't got to it as its been cold and rainy and I've been working alot
     
  17. Tarap

    Tarap New Member

    Dec 8, 2012
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    Sputtering is only the start !!

    Same exact issues was how mine started .. Back firing, sputtering ... Jumping kicking while running then slow acceleration ... $1200 later I needed a fuel pump replaced on my new 2011 s cooper ! To make matters worse I was just over my warranty 50,012 ! I googled this issue and apparently this isn't a rare find ... However in the past model they extended the warranty ... How can they continue to sell cars with issues they are aware of ! It's so wrong ! :confused:Anyone know how to fight to get the warranty extended on a faulty engine part ?
     
  18. Tarap

    Tarap New Member

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    Btw 2007-09 the High power fuel pumps are still under warranty for 10 years or 120,000 miles
     
  19. itsmewutup

    itsmewutup New Member

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    So the new fuel pump fixed the problem? Mine falls under the 100k mile warranty. Anyone know does that cover all labor or just parts?

    Edit: 120k? I was told it was 100
     
  20. DneprDave

    DneprDave Well-Known Member
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    Oct 23, 2010
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    I didn't promise anything!

    I fixed my clogged cat with a prune puree, good thing she's an outdoor cat!:yikes:

    There I said it! :prrr:

    Dave
     

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