599 runaway engine at starting... | FerrariChat
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599 runaway engine at starting...

Discussion in 'Technical Q&A' started by 433rdmaw, Jul 7, 2013.

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  1. 433rdmaw

    433rdmaw Karting

    Mar 23, 2008
    109
    San Antonio, TX
    Full Name:
    Jack Calhoun
    #1 433rdmaw, Jul 7, 2013
    My 599 has had two instances of "engine runaway" immediately upon starting. The first time it redlined before I cut the ignition switch. The second time I was able to cut the ignition switch by about 7K. Each time the second start attempt was normal.

    The problem appears to be random. So far there are no indications on how to recreate the problem or to anticipate it.

    Usually ops normal, but an awareness that this may occur at any time is unsettling.

    Any ideas?

    Thanks,

    Jack
     
  2. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,385
    Frederick, Maryland
    Full Name:
    Brian Brown
    #2 Motob, Jul 8, 2013
    Sounds like a bad throttle position sensor. As you know, there is no throttle cable, just a potentiometer connected to the gas pedal, which sends a signal to the ecu for the throttles. The ecu electronically opens the throttles. It sounds like a problem with the gas pedal/sensor, which I believe is only available as one complete part. Some diagnosis with an SD3 might be in order.
     

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