430 - Two different TCUs for measuring clutch life? | FerrariChat
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430 Two different TCUs for measuring clutch life?

Discussion in '360/430' started by Skywhale, Mar 10, 2024.

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  1. Skywhale

    Skywhale Karting

    Aug 17, 2022
    180
    South Florida
    Full Name:
    Carsten
    #1 Skywhale, Mar 10, 2024
    So I have an Autel device for reading my codes, and when looking for clutch stats (to do the calculation), I have two different TCUs:


    Marelli Semi Automatic Gearbox
    System CFC301

    and

    Marelli Semi Automatic Gearbox
    System CFC231

    I understand they’re two different systems… Is the car supposed to have both? If not, why would it? And if it is, which do I use the numbers from for clutch life measurement?

    To be safe I’ve been using the lower number… But should there even be two sets? And if so, how different should/could those be? Would it be normal to have almost 20% difference between them?
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,939
    Central NJ
    Full Name:
    Dominick
    #2 flash32, Mar 10, 2024
    The software should correspond to the TCU you have .. normally (I will explain later) the 2008 and greater you should use 3.01

    Why I say normally
    . sometimes even a 2007 needs to use the 3.01( probably transition period)

    The way I figure it out ( even model in data stream is not reliable) is to look at some numbers and see which version makes more sense ..like pressures, clutch positions, voltage etc


    It will become very clear when you look at numbers

    Sent from my moto g power using Tapatalk
     
  3. Skywhale

    Skywhale Karting

    Aug 17, 2022
    180
    South Florida
    Full Name:
    Carsten
    #3 Skywhale, Mar 10, 2024
    Thanks for the help! So follow up question… My car is a 2006, so I should likely use the 231? And out of curiosity, do you know WHY it would have two systems?
     
  4. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,939
    Central NJ
    Full Name:
    Dominick
    #4 flash32, Mar 10, 2024
    You should start with the 2.31 and see that the numbers make sense

    You don't have two systems ..it is the way the software works .. it just lists it twice .. one TCU in the car

    Sent from my moto g power using Tapatalk
     
  5. Skywhale

    Skywhale Karting

    Aug 17, 2022
    180
    South Florida
    Full Name:
    Carsten
    #5 Skywhale, Mar 10, 2024
    PERFECT! That’s what I’ve been doing, using 231 and using the since the numbers are 20% different, that number seems more accurate.

    That answered it. I’ll keep this post up for the next confused soul who asks my fun question :)
     
  6. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,175
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #6 tazandjan, Mar 10, 2024
    Last edited: Mar 10, 2024
    CFC231 and CFC301 are different generations of TCU hardware and firmware. On a label on the TCU. Dominick already knows that. This is a CFC231 TCU, although for an F133E (575M).


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    flash32 likes this.

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