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  1. #1
    Join Date
    Nov 2014
    Posts
    700

    Default Throwing code spn: 3256 FMI:5

    Just noticed last night that my check engine light came on. I didn't get a pop up alarm on the display like I have in the past, so I can only assume it's not an urgent alarm. A quick Google search came up with this info in the following pic. I plan on calling the dealer, but I'd like to get a morning set in and they don't open for a few hours. Can anyone tell me how serious this is? I imagine it's just going to effect emissions, but again, I don't know.

    Sent from my SM-G930W8 using Tapatalk
    2016 Craz.
    Enzo bags.

  2. #2
    Join Date
    Aug 2011
    Posts
    2,188

    Default

    It's fine just ignore it, you can disconnect the battery to clear it. But you will need a new o2 sensor. It will keep nagging until replaced and you lose some performance and mpg.
    Last edited by parrothd; 07-07-2018 at 12:23 PM.
    http://www.instgram.com/jlyons30
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV - Sold
    2017 Moomba Craz - Enzos, Lead

  3. #3
    Join Date
    Nov 2009
    Location
    Kaukauna, WI - 3minutes from glass
    Posts
    2,112

    Default

    Yup my '14 345 failed both O2 sensors. $150 gone pretty minor.
    -Mark
    14 Mojo - 72 hours and growing
    02 Mobius LSV ---- Sold and always will be remembered as the one that started it all.

    "Hey you only live once"

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