Close

Results 1 to 20 of 20
  1. #1
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7


    Reputation: Yes | No

    Engine Shaking and Loss of Power

    I'm on my phone currently with a quick question. My car randomly felt a little shaky so I poked the throttle a bit and it got more violent. I went to the pass through map and the problem persisted. For some reason it was worse in higher gears (6th>5th>4th). It was also only apparent under load, even light throttle. I pulled over, cleared codes, and restarted the car. Same problem and now I could hear if while revving under no load. I got to where I was going and restarted the car again and shot some video.
    Anyone have any suggestions? I don't think it's the hpfp as I don't have long starts. Maybe spark plugs, injectors, or coils? Also I assume I'm good to drive for the time being?
    I'll get the vids up when I get home
    Click here to enlarge

  2. #2
    Join Date
    Nov 2009
    Location
    Simi Valley, CA
    Posts
    7,981
    Rep Points
    8,872.9
    Mentioned
    627 Post(s)
    Rep Power
    89


    1 out of 1 members liked this post. Reputation: Yes | No
    If SES light is on and/or flashing its misfire. So probably injector, plug, or coil, as you suspect.

  3. #3
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    Thanks Terry. I just got home and get to head straight to work but after my appointment it had cleared it. No problems on the hour back home. As soon as I get a sec to hook my laptop up hopefully I'll get a better idea. Weird and worrying. 36k problem free, Sigh
    Click here to enlarge

  4. #4
    Join Date
    May 2010
    Location
    CT
    Posts
    1,716
    Rep Points
    826.2
    Mentioned
    0 Post(s)
    Rep Power
    9


    Reputation: Yes | No
    Do you have a pin out jb3? My buddy had a similar issue and one of his wires came loose... Just an idea

  5. #5
    Join Date
    Jul 2010
    Location
    Encino,CA
    Posts
    7,973
    Rep Points
    5,656.2
    Mentioned
    172 Post(s)
    Rep Power
    57


    Reputation: Yes | No
    could be coils. i had similar problem and it was my ignition coil.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  6. #6
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    Click here to enlarge Originally Posted by mazdaspeed6 Click here to enlarge
    Do you have a pin out jb3? My buddy had a similar issue and one of his wires came loose... Just an idea
    Thanks but mine is PnP. Finally have a day off of work so we'll see if I can stay up long enough to get it scanned
    Click here to enlarge

  7. #7
    Join Date
    Mar 2010
    Location
    South Africa
    Posts
    1,322
    Rep Points
    1,955.5
    Mentioned
    37 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    Have you ever removed your TMAP? Could also be a bad contact. Had something similar happen to me when I fitted my Stett Charge pipe.

  8. #8
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    Click here to enlarge Originally Posted by George Smooth Click here to enlarge
    Have you ever removed your TMAP? Could also be a bad contact. Had something similar happen to me when I fitted my Stett Charge pipe.
    I have not. I actually haven't really touched the car outside of the 2 mile drive to work since Aug. In looking through recommended maint for non stock vehicles it looks like I'm due for new spark plugs so I think I'm going to give that a shot.
    Click here to enlarge

  9. #9
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    Well here is the video as promised. The issue hasn't come back and I never had any codes I could see with my tune. I am still waiting to see if my car will fall under the injector recall (just called BMW NA again and still nothing but they said they are still working on updating who it applies to). The car had a lot less power, shook under load, and sounded like a damn WRX STI with exhaust

    Click here to enlarge

  10. #10
    Join Date
    Jul 2010
    Location
    Louisiana
    Posts
    1,744
    Rep Points
    1,330.4
    Mentioned
    14 Post(s)
    Rep Power
    14


    Reputation: Yes | No
    Thats exactly what happened when i had my cylinder 1 and 2 misfire.
    Click here to enlarge


  11. #11
    Join Date
    Nov 2009
    Location
    Boca Raton FL
    Posts
    2,042
    Rep Points
    48.0
    Mentioned
    3 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    coil my friend
    Click here to enlarge

  12. #12
    Join Date
    Feb 2010
    Location
    Corpus Christi, Texas, United States
    Posts
    3,053
    Rep Points
    1,236.6
    Mentioned
    6 Post(s)
    Rep Power
    13


    Reputation: Yes | No
    If it sounded like a STI you were just missing on a cylinder or two. Like everyone has said, there is either a bad injector, coil or the HPFP was in a situation where it was not providing the correct fuel pressure. Your plugs shouldn't be that far gone, and if they were the issue it wouldn't randomly go away. It is good to do spark plugs anyway though, if you have the money.

  13. #13
    Join Date
    Sep 2010
    Posts
    116
    Rep Points
    67.4
    Mentioned
    0 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    Damn it does sound like an STI.

    Any codes??
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

  14. #14
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    No codes on the Procede, but I'm starting to wonder about that because for a bit now I've had a SES light, clearable with the normal gas pedal method, that keeps returning and I still see no codes. I have seen codes before so as far as I know I'm doing everything right, but Vishnu tech support has Really been letting me down.
    Click here to enlarge

  15. #15
    Join Date
    Oct 2010
    Posts
    537
    Rep Points
    1,302.2
    Mentioned
    17 Post(s)
    Rep Power
    14


    1 out of 1 members liked this post. Reputation: Yes | No
    I'd like to congratulate you on the 1st completed EJ257 swap. Don't take it the wrong way it sucks having your car act up but I think it's amazing on how much it sounds like an STI.

  16. #16
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    Haha thanks. My frustration kept the humor from me, but it was uncanny.
    Click here to enlarge

  17. #17
    Join Date
    Nov 2010
    Posts
    450
    Rep Points
    559.5
    Mentioned
    8 Post(s)
    Rep Power
    6


    1 out of 1 members liked this post. Reputation: Yes | No
    It sounds an awful lot like a dead coil. You can pull one at time, and when you get to one that doesn't make your rpm change, you found the right cylinder. If you swap coils with another cylinder and the miss follows that cylinder, you know it's the coil. If not, it's either the injector or spark plug.
    Last edited by Ryan Mills; 01-20-2011 at 10:41 PM. Reason: drunken spelling.

  18. #18
    Join Date
    Nov 2009
    Location
    USA
    Posts
    2,215
    Rep Points
    1,142.0
    Mentioned
    11 Post(s)
    Rep Power
    12


    Reputation: Yes | No
    OP, you get the issue resolved? Find out what it was?

  19. #19
    Join Date
    Feb 2010
    Location
    Hanover, MD
    Posts
    1,220
    Rep Points
    697.0
    Mentioned
    4 Post(s)
    Rep Power
    7



    Reputation: Yes | No
    ^ It corrected itself and I've been really busy lately so I haven't got a chance to dig into it.
    Click here to enlarge

  20. #20
    Join Date
    Nov 2010
    Location
    le Paris
    Posts
    6,653
    Rep Points
    -253.0
    Mentioned
    48 Post(s)
    Rep Power
    0


    Reputation: Yes | No
    STI guys would kill themselves for having an engine note like that.

Tags for this Thread

Bookmarks

Posting Permissions

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