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VAGCOM says Fuel system too lean What to do?

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  • VAGCOM says Fuel system too lean What to do?

    17831 - Secondary Air Injection System; Bank 1
    P1423 - 35-10 - Insufficient Flow - Intermittent
    16555 - Fuel Trim; Bank 1
    P0171 - 35-10 - System Too Lean - Intermittent
    Hiall.
    The car is running pretty well but I ran the VAGcom software and it reported the above faults. Any thoughtsabout what I do to fix?
    Regards
    Stewie

  • #2
    What engine is it? Probably an airleaks after the MAF if there is one
    optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

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    • #3
      Originally posted by h100vw View Post
      What engine is it? Probably an airleaks after the MAF if there is one
      1.6 ag4
      I think there is an issue with the secondary air pump

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