355 F1 engine idle | FerrariChat
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355 F1 engine idle

Discussion in '348/355' started by pacificcavallino, Jul 16, 2009.

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  1. pacificcavallino

    pacificcavallino Rookie

    Oct 28, 2004
    5
    #1 pacificcavallino, Jul 16, 2009
    When the car is warm and has been run a while, the engine tends to hold RPM when slowing down or when driving acts like a cruise control... only decreasing engine RPMs very very slowly.... when engine is cold or when traveling around town, at normal operating temp, it behaves just fine. .... only when on a longer trip or on the highway does it not return to idle as is should. ..... So it happens once in a while....not every time.... and only after the car has been sitting after being driven for a while..... I have turned it off and restarted it, but until I leave it overnight, it continues with the slow idle return. .. the next day, it operates perfectly!! Any ideas?
     
  2. Saint Bastage

    Saint Bastage F1 Rookie

    Jun 1, 2007
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    Lane
    #2 Saint Bastage, Jul 16, 2009
    My guess...Throttle cable, linkage, or the most likely....carpet
     
  3. ernie

    ernie Two Time F1 World Champ
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    Nov 19, 2001
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    #3 ernie, Jul 16, 2009
    Ah yes, the ol' Ferrari cruse control. LOL!

    +1 with what Lane said. Then check the pivot bearing in the middle of the linkage. Make sure it's clean and not all gummed up with gunk.
     
  4. rbellezza

    rbellezza F1 Rookie

    Jun 18, 2008
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    Roberto Bellezza
    #4 rbellezza, Jul 16, 2009
    The 355F1 has no cable but a potentiometer for the throttle, i doubt the carpet could be the reason ... too simple. I think your problem is in the sensors, air flow possible, and so on. I would clean the MAF first, it's very easy to do.
     
  5. eric355

    eric355 Formula 3
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    Nov 30, 2005
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    Eric DECOUX
    #5 eric355, Jul 17, 2009
    The 355F1 do have a cable ... that's why it is not able to blip the throttle by itself when down-shifting. Potentiometers and drive-by-wire throttle appear only on the F360.
    In addition to what was said, if it is not the carpet, I would have a look and clean the idle regulator which could be lazy due to some internal deposit.
     
  6. 355

    355 F1 Rookie
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    Jan 4, 2005
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    Frank
    #6 355, Jul 17, 2009
    Time to call Dave Helms and get the gold kit and replace all your connections.
     
  7. eyboro

    eyboro Formula Junior
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    Eitan
    #7 eyboro, Jul 17, 2009
    My car, a 1997 355 6 speed, has the developed the exact symptoms you're describing at idle. I spoke to my mechanic and he suggested I reboot the car's ECU by shutting down the battery for 20 minutes making sure nothing is left on like radio,a/c, lights, even HB (put blocks behind the rear wheels), and then start the car and let it idle for 15 minutes
     
  8. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    #8 Rifledriver, Jul 17, 2009
    Thats about the second dumbest thing you could do.
     
  9. eyboro

    eyboro Formula Junior
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    #9 eyboro, Jul 17, 2009
    What's the first??
     
  10. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    #10 Rifledriver, Jul 17, 2009
    Going back to that mechanic. He's an idiot.
     
  11. F1dreamer

    F1dreamer Karting

    Nov 10, 2008
    232
    Atlanta
    #11 F1dreamer, Jul 17, 2009
    You guys are making me roll........
     
  12. eyboro

    eyboro Formula Junior
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    #12 eyboro, Jul 17, 2009
    Well, after following my mechanic advise, so far so good, I have no idle problems. So maybe you are the idiot!
     

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