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ECU rebuilds 355

Discussion in 'Technical Q&A' started by cobra 99, Apr 5, 2019.

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  1. cobra 99

    cobra 99 Rookie

    Dec 16, 2006
    3
    Wisc and Fl
    Full Name:
    Rollie Stephenson
    I'm looking for advice on ECU for heating unit for 1997 355B stick. Has anyone used Scientific Auto Inc out of Rogersville Tenn. ? Thank you
     
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  3. Qavion

    Qavion F1 Rookie
    Silver Subscribed

    Feb 20, 2015
    4,901
    Sydney
    Full Name:
    Ian Riddell
    Do you mean the HVAC ECU, Ferrari part number 64324800?

    Do you have a specific problem with the heating system? There are a few DIY threads on the F348/F355 sub-forum relating to these units. Some involve replacing cheap integrated circuits. In other cases, external components are causing the ECU circuit chips to blow up. It's important to make sure the valves and things are operating normally before replacing/repairing these expensive units.
     
  4. baschul

    baschul Karting
    Owner

    May 27, 2015
    177
    Dallas, TX
    Full Name:
    Brian S
    I used Scientific Auto Inc. to rebuild my HVAC ECU in the spring of 2016. Three years later, still working perfectly. I paid for the lifetime warranty since the six main chips that control the actuators, hot water pump, heater valve, etc. are prone to failure over and over again.
     
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