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Thread: VAGCOM says Fuel system too lean What to do?

  1. 27-09-2020, 11:52 AM #1
    stewhughart
    stewhughart is offline New Dubber
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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
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  2. 27-09-2020, 01:26 PM #2
    h100vw's Avatar
    h100vw
    h100vw is offline Dub Crazy VWwA Super Moderator
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    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. 29-09-2020, 09:00 PM #3
    stewhughart
    stewhughart is offline New Dubber
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    Quote 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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