engine running at very reduced power | FerrariChat
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engine running at very reduced power

Discussion in '456/550/575' started by byronmallen, Nov 9, 2015.

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  1. byronmallen

    byronmallen Rookie

    Aug 16, 2014
    5
    friendswood, tx
    Full Name:
    byron m allen
    #1 byronmallen, Nov 9, 2015
    drove my 1995 456GT 2 weeks ago, it ran perfectly. I drove it yesterday and it is making 1/2 or less power, no codes, no fault indications. This happened once before when I took it to a shop for complete oil seal change and when I got it back, it ran perfectly. The shop said they did nothing to fix it. Thinking an ECU quit but if it did, it was turned off when it happened. Could be a bad connector? HELP!!!!
     
  2. MotoMeccanica

    MotoMeccanica Formula Junior
    Silver Subscribed

    Aug 21, 2006
    450
    Canada
    #2 MotoMeccanica, Nov 9, 2015
    It's happened on mine, MAF connectors......a couple pins had corrosion on them.

    Scott
     
  3. TZ 750

    TZ 750 Formula Junior

    Jul 18, 2009
    912
    #3 TZ 750, Nov 9, 2015
    Crank angle sensor: $120
     
  4. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,175
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #4 tazandjan, Nov 9, 2015
    Byron- Take it to somebody who can diagnose it properly.
     
  5. MoeD

    MoeD Formula 3

    Aug 1, 2007
    1,278
    USA
    Full Name:
    Moe D
    #5 MoeD, Nov 10, 2015
    Happened to me after a major service once- They forgot to connect throttle cables properly

    Sounds dumb, but you never know...
     
  6. 360modena2003

    360modena2003 Formula 3

    Jul 11, 2009
    2,438
    #6 360modena2003, Nov 10, 2015
    Yes, try the basics first.

    1. MAF connectors.
    2. Crank position sensor
    3. Fuel Pump/Fuel Filter (you could have blockage from the disintegrating rubber gaskets/holder inside the tank)
     
  7. byronmallen

    byronmallen Rookie

    Aug 16, 2014
    5
    friendswood, tx
    Full Name:
    byron m allen
    #7 byronmallen, Nov 13, 2015
    thanks to all, the Ferrari mechanic says it was a corroded fuel pump relay which shut down the fuel to 1/2 the engine. Picking it up tomorrow. I think I'll go through all the connectors and clean them.
     
  8. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,175
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #8 tazandjan, Nov 13, 2015
    Byron- I love a happy, and inexpensive, ending.
     

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