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348 O2 sensor removal

Discussion in 'Technical Q&A' started by ernie, Aug 9, 2009.

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  1. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    34,749
    Ontario, Canada
    Full Name:
    Mike
    #76 AceMaster, May 1, 2018
    That is correct - if you saw in Ernie's thread (first few posts), he mentioned that the wheels had to be removed because he didn't have O2 sensor sockets, so he had no alternative but to remove the wheels to access with an open end wrench.

    The O2 socket eliminates the need to remove the wheels
     
    vdettore likes this.
  2. Jasonberkeley

    Jasonberkeley Formula 3

    Apr 23, 2017
    1,327
    NW Corner, CT
    Full Name:
    Jason Berkeley
    #77 Jasonberkeley, Oct 28, 2023
    Ernie-

    I have been having similar issues on my car for months. Curious what ended-up resolving the issue for you.

    Thanks,

    Jason
     
  3. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,611
    The Brickyard
    Full Name:
    The Bad Guy
    #78 ernie, Oct 29, 2023
    New O2 sensors did the trick.

    However I did need eventually new to replace the EPROMs in the Motronic ECUs with a fresh set.
    https://www.ferrarichat.com/forum/threads/348-ecu-removal-chip-removal.351819/

    I also re-pinned the T55 connectors on both wiring harnesses. https://www.ferrarichat.com/forum/threads/348-motronic-2-7-connector-harness-repin.444155/
     
    Jasonberkeley likes this.
  4. Jasonberkeley

    Jasonberkeley Formula 3

    Apr 23, 2017
    1,327
    NW Corner, CT
    Full Name:
    Jason Berkeley
    #79 Jasonberkeley, Oct 29, 2023
    Thanks!
     
    ernie likes this.
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