360 Throttle hesitation just off idle | FerrariChat
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360 Throttle hesitation just off idle

Discussion in 'Technical Q&A' started by rbf41000, Dec 1, 2005.

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  1. rbf41000

    rbf41000 Formula Junior

    Nov 21, 2005
    698
    Delray Beach FL
    Full Name:
    Russell
    #1 rbf41000, Dec 1, 2005
    Any one had or have this?

    2003 360 fitted with Tubi exhaust and Gruppe m airbox.
    The car runs great and pulls hard through the rev range exept when engine is under no load ie neutral or clutch in.
    When you blip the throttle you can hear the air being sucked in but the engine hesitates for a short while. Almost as if it is not getting fuel.
    Those of us who are old enough to remember playing with carbs will liken this to an accelorator pump going bad and giving a weak mixture until the fuel catches up with the air.
    Thoughts in any direction would be appreciated.

    Russ
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #2 Rifledriver, Dec 1, 2005
    Do I understand correctly that it does not do it under load?

    If it is a six speed does it do it when you are blipping the throttle bad enough to cause you rev or timing problems when downshifting.
     
  3. Whatever

    Whatever Formula Junior

    Sep 6, 2002
    346
    Highland Village, TX
    Full Name:
    Dan Marlett
    #3 Whatever, Oct 12, 2007
    I have this exact same problem. Was / is there any solutions?

    Thanks, Dan
     
  4. Daryl Zernick

    Daryl Zernick Formula Junior
    Silver Subscribed

    Jul 7, 2020
    279
    South Bend, IN
    Full Name:
    Daryl A. Zernick
    #4 Daryl Zernick, Aug 20, 2020
    I have this same characteristic on my 2008 F430 with stock exhaust. If you mash the accelerator to the floor, you hear a whoosh of air sound and then it revs versus there being an immediate revving of the engine.

    Is this normal with a stock exhaust???
     
  5. Weteddy

    Weteddy Rookie

    Jan 7, 2022
    11
    Cleveland, Ohio
    #5 Weteddy, Mar 14, 2022
    Has anybody found any more info on this?

    My car was running fine earlier today, until I spun out and accidentally ran the wheels in reverse, stalling the engine. I’m used to pushing the clutch in in a situation like that, but I’m still getting used to the F1 gearbox.

    After that, car immediately started running exactly as described in these few posts. Lots of hesitation when blipping on downshifts or revving under no load.




    Sent from my iPhone using FerrariChat.com mobile app
     
  6. Weteddy

    Weteddy Rookie

    Jan 7, 2022
    11
    Cleveland, Ohio
    #6 Weteddy, Mar 20, 2022
    Update:

    I remember that I had this identical issue in my Maserati Coupe, and found a very strange fix to it. Symptoms were exactly as described in this thread, in addition to the “E” light on the dash for the climate control system. I started by replacing the MAF sensor. Didn’t change anything.

    After a lot of research, I found that the E light is commonly caused by the ambient temperature sensor failing. This sensor is on the bottom of the left hand mirror. The 360 uses the same part. I think I replaced that part and still didn’t change anything.

    Eventually I removed the center console trim piece with the HVAC controls on it. I realized that the last time I had removed it, I either forgot to connect one of the connectors on the back, or maybe it had fallen off.

    I reconnected that part, the E light went away, and the throttle response issue was fixed.

    Strange, but apparently the ambient temperature reading on the exterior mirror is factored in when calculating the fuel map. Engine runs rough when that reading is absent or inaccurate.


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