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Ferrari 355 F1 Diagnosis

Discussion in '348/355' started by Barnone 308, Mar 27, 2019.

  1. Barnone 308

    Barnone 308 Formula Junior

    Mar 22, 2004
    430
    canada
    I have a 1998 ferrari 355 F1, I brought it in for its major service, they told me its running rough and sent me a video. I asked that they put the SD3 to it. After listening to the video these were my guesses to what was causing this.
    1. Fouled Plugs
    2. Coils
    3. Thermolcouplets
    4. Catalyst temperature unit (CTECU)

    I am picking your brains and what to know your thoughts. Please listen to attached video
     
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  3. Ferrarium

    Ferrarium F1 Rookie
    Rossa Subscribed

    Jul 28, 2018
    3,002
    Central NJ
    Full Name:
    Eric
    Wait.. so it was not like that before they did the service, you brought it there running fine?
    No video attaches or linked btw.

    Sent from my LM-Q710(FGN) using FerrariChat.com mobile app
     
  4. Barnone 308

    Barnone 308 Formula Junior

    Mar 22, 2004
    430
    canada
    Having problems uploading video. I know that last I drove the car I did notice a slowdown like come on once. I used my OBDII to shut off engine light so the car isn't running on limp mode. Any advice on how to upload video
     
  5. Ferrarium

    Ferrarium F1 Rookie
    Rossa Subscribed

    Jul 28, 2018
    3,002
    Central NJ
    Full Name:
    Eric
    Cant upload a video. Post it on youtube and put a link to it.
     
  6. Qavion

    Qavion F1 Veteran
    Silver Subscribed

    Feb 20, 2015
    5,184
    Sydney
    Full Name:
    Ian Riddell
    So you cleared the CEL (Check Engine Light) without getting a code? The code may have shown that a particular engine bank was faulty. Then you would at least have had the option of swapping components (e.g. thermocouple TCUs).

    Is the car now running roughly without a CEL? Is it running roughly at idle or at all rpms?
     
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  8. INTMD8

    INTMD8 F1 Veteran
    Owner

    Jun 10, 2007
    5,641
    Lake Villa IL
    Full Name:
    James Moran
    If the shop can't diagnose it how are they qualified to do a major service? Unless I'm misunderstanding this thread.
     
  9. taz355

    taz355 F1 Veteran
    Silver Subscribed Owner

    Feb 18, 2008
    5,442
    Indio Ca/ Alberta
    Full Name:
    Grant
    It would be good if you filled out name and location.
    Also which shop did you take it too


    The way i understand is he brought it in for a major and they told him before they did anything its running rough.

    If they have an sd3 they should be able to fix it as stated all ready

    The problem is there are too many variables and you have not given enough info

    Need to know why a cel was on
    Need to know why a sdl was on, was it steady or flashing
    Need too know if you. Had done any work since it was running good. At some point
    Need too know what kind of exhaust (all components)
     

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