Here’s the reason for ECU strange behavior | FerrariChat

Here’s the reason for ECU strange behavior

Discussion in 'FF/Lusso' started by gabriello, Oct 21, 2017.

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  1. gabriello

    gabriello Rookie

    Aug 30, 2017
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    #1 gabriello, Oct 21, 2017
    Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Got my 2013 5000km FF for 1.5 month and it suddenly black out and restart the entire dashboard and lights but didn’t turn off the car while I was driving on the road, after 1 sec it will back to normal but throw up all the failure beep including 4wd, manettino, ESC and AVH, everything will back to normal once turn off and restarted the car. Pretty scary and dangerous. I took it to a Ferrari specialist shop and they found out it was because the serious oxide grounding issue. They said most of the FF have his problem especially in Asia because of the humid weather. Now they need to use 2 weeks to replace all the grounding cable connectors for me and see if the problem is gone, but it does make sense to me for the faulty act. To share the photos with you guys just in case you have the same problem.
     
  2. Brian L

    Brian L Formula 3

    Jun 17, 2015
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    #2 Brian L, Oct 21, 2017
    Sorry to hear.

    Italian cars and water. A long history of sadness :)
     
  3. Solid State

    Solid State F1 Veteran
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    #3 Solid State, Oct 21, 2017
    The oxide growth does not appear to be from direct water saturation but rather promoted by humidity and perhaps dissimilar metals. The area looks very clean otherwise. The bolt and strap-end appear to be steel and the frame aluminum. Not sure how to eliminate this other than slowing it down with conductive and less reactive gel. Is this consistent with what your shop has found?
     
  4. otakki

    otakki Formula 3

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    #4 otakki, Oct 24, 2017
    Unlike iron and steel, the the aluminum oxide layer that forms on any exposed aluminum should stop further corrosion. I wonder if the corrosion is caused mainly by steel/iron. Aluminum has way better conductivity than steel/iron.
     
  5. Solid State

    Solid State F1 Veteran
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    #5 Solid State, Oct 24, 2017
    Not referring to ordinary oxidation of the aluminum but rather suggesting a bimetallic reaction here. Steel/iron with aluminum in the presence of high humidity/electrolyte.
     
  6. boostorbust

    boostorbust Karting

    Jan 27, 2013
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    #6 boostorbust, Oct 25, 2017
    I had similar issues because of a low/weak battery. My grounds are very clean and your pictures do show issues. I would have to believe that if a low/weak battery will trigger that same symptom bad grounds will as well. You might just start with all the grounds around the battery 1st and see what happens
     
  7. gabriello

    gabriello Rookie

    Aug 30, 2017
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    #7 gabriello, Oct 25, 2017
    The car is all well after cleaning all the grounds, the battery voltage back to normal 96% from 8% original. No need to replace the battery at all !
     
  8. Solid State

    Solid State F1 Veteran
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    #8 Solid State, Oct 26, 2017
    So what does the shop attribute the corrosion to? Or perhaps they don't know and it might reoccur.
     
  9. otakki

    otakki Formula 3

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    #9 otakki, Oct 29, 2017
    What about using aluminium braided lines, wires, and connectors for those grounding points? That should solve the problem of corrosion due to bi-metal, right?
     
  10. trygve11

    trygve11 Formula Junior
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    #10 trygve11, Oct 29, 2017
    This is a great write up and heads up for any of us that works on these cars. Thank you!
     
  11. Solid State

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    #11 Solid State, Oct 29, 2017
    Only if you also include an aluminum bolt and maybe some conductive gel to keep the moisture out. That would seem a permanent fix.
     

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