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A6 codes 850

posted by  baneps on  Fri May 27 11:34 CST 2005
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Hi,
Has anybody come accross A6 codes:
411 - throttle positions sensor signal missing/faulty? does it mean have to replace it?

241- EGR system flow too low? - what does this mean and how do i fix it?

thanks
94' 850 wagon non turbo- 195k








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    A6 codes 850

    posted by  Si850 on  Fri May 27 15:31 CST 2005
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    Hi, I just recently overcame a TPS fault.I had a 2-2-3 and a 4-1-1 code as you stated.The 2-2-3 code is related to (TPS throttle sensor signal too low) and the 4-1-1 code is related to ( Throttle position sensor (TPS) signal from fuel injection system missing or faulty. So both faults suggested that my TPS is dodgey.I investigated and found that this link help me locate the TPS.
    http://www.volvospeed.com/Repair/ftrap.php .I could not find any info on repairing the TPS.I sprayed my male and female contacts on the TPS with contact cleaner and the fault ceased.I also purchased a seconhand unit and replaced the TPS; this also removed the fault.I would suggest to change it out.They are pretty costly bits of plastic a new one cost me $200.00 AU.
    I also have a previous post under Throttle Position Sensor on this page , check it out if you already haven't.
    Let me know how you went.

    Regards,

    Si850








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      A6 codes 850

      posted by  baneps on  Fri May 27 17:12 CST 2005
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      Hi,
      Well i noticed the codes showed up when i did a flame trap service (replace and clean Throttle Body). I did try to clean with contact cleaner last month but codes went back, but i did not take the whole assembly out. Will take off the whole unit over the weekend and see what happens. New TPS at FCPGroton.com is about $45. Worst comes to worst i just might settle for a new one....Do you think this has something to do with black soots noticeable on my muffler? Cold(real cold) start sets gas fumes but goes away after warm up.
      Thanks for the reply and have a great weekend.







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