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Ferrari 456

Discussion in 'Technical Q&A' started by David Fowler, Oct 21, 2019.

  1. David Fowler

    David Fowler Rookie

    Jul 31, 2019
    1
    Full Name:
    David Fowler
    Hi everyone,

    I recently inherited a 456, it’s lovely but it stopped working 2 days after my first drive.

    the left hand fuel injector relay just constantly buzzes the moment the battery is connected.

    it’s not the relay as I swapped it out and it still buzzes.

    it was working fine but during a drive the car seemed to become really sluggish with lights on the dashboard randomly flashing.

    i pulled over, tried to restart the engine but it was no use, just the relay buzzing and it wouldn’t start.

    any ideas?

    thanks
     
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  3. killer58

    killer58 Formula 3

    Jun 30, 2010
    1,159
    CA & DC
    Battery / alternator ??
    When my alternator went, I had very similar symptoms.
    The car sputtered and the dash panel lights blinked like a Christmas tree.
     
  4. vincep99

    vincep99 Formula 3
    Silver Subscribed Owner

    Jun 8, 2009
    1,837
    Measure the battery voltage; should be 12.6 volts. If not, charge and try again. If it won;t take a charge, you'll need a new battery but it may not be the battery's fault: once you get it running, check the voltage and it should be 13.5 - 14.1. If not, it is the alternator/regulator

    Also of course check your OBD codes
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    34,271
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    No OBDII on early Motronic 2.7 456s. Fitted when Motronic 5.2 was introduced in CY 1996.
     
  6. BigTex

    BigTex Seven Time F1 World Champ
    Rossa Subscribed Owner

    Dec 6, 2002
    75,211
    Houston, Texas
    Full Name:
    Bubba
    Well congrats and condolences all at the same time.....these guys posting can get you sorted for sure!!
     
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