308 GTSi Alternator Voltage | FerrariChat
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308 GTSi Alternator Voltage

Discussion in 'Technical Q&A' started by seschroeder, Oct 21, 2004.

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  1. seschroeder

    seschroeder Formula Junior

    Apr 25, 2002
    251
    Alexandria, VA
    Full Name:
    Steve Schroeder
    #1 seschroeder, Oct 21, 2004
    Does anyone know the "nominal" voltage for the alternator? My car runs approximately 10.5 volts at idle and 13.3 volts at 2,500 RPM or above. I suspect the voltage regulator is going or needs to be replaced. In addition, the oil pressure will increase approximately 15 PSI with the headlights on as the voltage drops to 12.0 or so. I understand the pressure sensor is working on resistence so perhaps a dirty/bad connection or a bad sensor.

    As always, thanks in advance.

    Steve Schroeder
     
  2. Ferrari_tech

    Ferrari_tech Formula 3

    Jul 28, 2003
    1,527
    UK
    Full Name:
    Malcolm W
    #2 Ferrari_tech, Oct 21, 2004
    Steve, assuming you have the Bosch 65 amp alternator I would have expected the voltage to be 14 - 14.5 @ just over 5000 rpm
     

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