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348 catalyst ecu's

Discussion in '348/355' started by zman, Apr 6, 2019.

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  1. zman

    zman Formula Junior

    Jan 14, 2006
    356
    Toronto, Ontario
    #1 zman, Apr 6, 2019
    Anyone ever try repairing the catalyst ecu's
     
  2. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,457
    San Carlos, CA
    Full Name:
    Mitchell Le
    #2 yelcab, Apr 6, 2019
    Nope. They are totally potted so it is hard to get into the electronics. Buy new ones.
     
    f355spider likes this.
  3. zman

    zman Formula Junior

    Jan 14, 2006
    356
    Toronto, Ontario
    #3 zman, Apr 9, 2019
    There was another post here of repairing the 355 cat ecus and just wondering if anyone tried it on the 348 catalyst ecu.
    I know they are potted but there was pictures where he grounded the plastic in the back and revealed the circuit. Removed some of the silicone and soldered the bad grounds and it worked again.
    Just wondering about the 348 and if they are the same in the back side as I would like to take a grinder to one and see. A failed unit of course.
    They are becoming more experienced in at around the 500 dollar mark and if they can be repaired then why not. That's if you still run with then cats.
     
  4. m.stojanovic

    m.stojanovic F1 Rookie
    Silver Subscribed

    Dec 22, 2011
    3,185
    Serbia - Niš
    Full Name:
    Miroljub Stojanovic
    #4 m.stojanovic, Apr 9, 2019
    I have tried, there is no way you can access the electronics in the 348 cat ECU. The internals are sealed in either epoxy or some other hard compound, not in silicone.
     
    Qavion likes this.
  5. taz355

    taz355 F1 Veteran
    Owner Silver Subscribed

    Feb 18, 2008
    6,007
    Indio Ca/ Alberta
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    Grant
    #5 taz355, Apr 9, 2019
    I have a 355 but if its all ready not working that is exactly what i would do and it might fix it. I also have repaired a 355 tcu
     
  6. drbob101

    drbob101 F1 Rookie
    Owner Silver Subscribed

    Nov 26, 2012
    3,821
    Tinton Falls, NJ
    Full Name:
    Bob Ferraris
    #6 drbob101, Apr 10, 2019
    That fix may not necessarily be the problem either.
     
  7. taz355

    taz355 F1 Veteran
    Owner Silver Subscribed

    Feb 18, 2008
    6,007
    Indio Ca/ Alberta
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    Grant
    #7 taz355, Apr 10, 2019
    Exactly but a cheap try.
    What Bob will tell you and he is correct
    Probe the wires for realtime data.
    Or you can make some guesses
     

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