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2005 Xrunner- NO POWER and Black smoke.

Discussion in 'Underdog Racing Development' started by rockstar626, Aug 8, 2012.

  1. rockstar626

    rockstar626 [OP] Member

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    This. This is exactly what we were told at Toyota. You just worded it better than me.
     
  2. rockstar626

    rockstar626 [OP] Member

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    Where would this be located?
     
  3. rockstar626

    rockstar626 [OP] Member

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    Also, where can we determine this so I can post?
     
  4. rockstar626

    rockstar626 [OP] Member

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    We will check this and post more info asap.
     
  5. 98tacoma27

    98tacoma27 :POOPCORN: Thor

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    It is usually wired directly into the main harness.

    Look on the left side of this pic. You can see the black URD box. It would look something like that. Granted it may not be an actual URD product. It could be APR-X1 (I think) or something else. Check the ECU location also.

    [​IMG]

    If you can upload some pics, that might help us also.
     
  6. rockstar626

    rockstar626 [OP] Member

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    I will try and do so as soon as I can get the truck to me.
     
  7. zacksblacktaco

    zacksblacktaco Well-Known Member

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    call the urd tech support line and ask for gadget, from what i have read it seems like the problems are going to point to the APR X-1 engine management system. what will be needed will probly be a firmware update
     
  8. stewartx

    stewartx Well-Known Member

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    Okay, I'll take a wild guess. Of course, first check the fuel system (leaks, clogs, bad fuel, etc). However, the O2 sensor is usually the #1 cause of these symptoms. Try replacing that, reseting the computer, and driving for a few miles to see if the smoke stops and power returns. If that doesn't work, try the MAP sensor, followed by the coolant temp sensor. Each of these impact how the computer manages the fuel mix.
     
  9. 98tacoma27

    98tacoma27 :POOPCORN: Thor

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    Did you even read the whole thread?
     
  10. whippersnapper02

    whippersnapper02 Well-Known Member

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    Here is my horrible Paint work:

    tapatalk_1344443065954.jpg
     
  11. rockstar626

    rockstar626 [OP] Member

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    Thank You for this. Your community is so helpful! We will check this and let everyone know. I have a guy that is familiar with these at our local Toyota store that will check and advise after work tonight and see what we can find.
     
  12. whippersnapper02

    whippersnapper02 Well-Known Member

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    The large pipes after the blower are the boost/charge pipes. The smaller pipe with the valve is the bypass for when boost is not needed.

    I don't know for sure but I believe the MAF is before the blower on this kit. If it is then any pressurized air leaking past the blower would cause it to run rich. It could also be a simple failure of the ECU which he would have to buy a new one since APR no longer makes the X1.
     
  13. stewartx

    stewartx Well-Known Member

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    No. I responded to the OP, not anyone else in the thread. If my ideas agree or conflict with anything else said, doesn't change those ideas. The OP can take or leave my comments as he alone so desires.
     
  14. 98tacoma27

    98tacoma27 :POOPCORN: Thor

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    It shows because everything you suggested has either been done or doesn't pertain to the issue at hand.
     
  15. rockstar626

    rockstar626 [OP] Member

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    OK, The guy at the Toyota Dealer doesnt apperantly know how to talk to the system. Here is the pic of the x-runners setup. We checked the things mentioned above, and everything seems tight, booster pipes, etc. Hoping somebody here can tell us what we got.

    URD SC.jpg
     
  16. chadderkdawg

    chadderkdawg Don't ask questions you don't want the answer to..

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    You need to find someone who can work with that URD tuner
     
  17. rockstar626

    rockstar626 [OP] Member

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    Right. Where do we find this person?
     
  18. chadderkdawg

    chadderkdawg Don't ask questions you don't want the answer to..

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    There is the million dollar question.... Any performance shops in town?
     
  19. 98tacoma27

    98tacoma27 :POOPCORN: Thor

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    Has Gadget gotten back to you?
     
  20. Pugga

    Pugga Pasti-Dip Free Since 1983

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    Corporate Headquarters:
    Underdog Racing Development, LLC
    P.O. Box 39
    Huntingtown, MD 20639
    USA

    Tel: (877) 887-3872
    Fax: (410) 630-5011
    Technical Assistance - support@urdusa.com

    I know you said you tried contacting them but, if I were you, I'd keep at it. They are the experts when it comes to your setup and would either be able to pass you on to someone local who knows the system or tell you how to deal with it (probably send you the software to deal with the system).
     
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