Idle Control Valve fix..sort of | FerrariChat
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Idle Control Valve fix..sort of

Discussion in '348/355' started by mj_duell, Jul 21, 2012.

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  1. mj_duell

    mj_duell Formula 3

    Nov 20, 2004
    1,421
    S. Glastonbury, CT.
    Full Name:
    Mike
    #1 mj_duell, Jul 21, 2012
    So I have been having intermittent erratic and dipping revs over the past few months. The 348 had even started dying at stops. I have tried all sorts of things to remedy this issue, like fuel pressure regulators, check fuel pressure, checked electrical etc. I then got to the idle control motors and valves. I checked with a meter to see if the plugs were getting power to activate the motors and that showed all fine. So I concluded the valves or the motors must be shot, checked motors with meter and they were good. I looked into the casting of each tube inlet and outlet and saw a ton of soot and dirt had built up over the years and I wondered if these things were cleanable and not just a replacement part. I ended up going online and finding that these ICV's are almost identical to units used on different BMW models and should be cleanable. I figured I would have to replace them if my experiment didn't work so I gave it a shot. I sprayed MAF cleaner heavily into the openings for the inlet and outlets a few times until I finally saw the fluid come out clear and I could see the valve mechanism inside was clean. The amount of dirt build-up over the years is what starts to make the valves fail.

    I plugged both of the units back in and made sure the inlet and outlet hoses were clean and had no holes or rips. The fix worked like a charm! Dead steady idle, no dip in the rpms at lights and the car feels a bit more "freed-up". I highly recommend trying to clean these things before replacing them as they can be very expensive. Welp, that's it. Hope this helps somebody someday.

    --Mike
     
    Aris64 likes this.
  2. The Outcast

    The Outcast Formula 3

    Apr 19, 2011
    1,562
    Royal Oak Michigan
    #2 The Outcast, Jul 22, 2012
    THANK YOU!!!! WORKED FOR ME TOO!!! Even my tech hasn't been able to diagnose this.
     
  3. mj_duell

    mj_duell Formula 3

    Nov 20, 2004
    1,421
    S. Glastonbury, CT.
    Full Name:
    Mike
    #3 mj_duell, Jul 22, 2012
    I am so glad this post helped someone. With these cars getting older any little bit of info helps. I am glad to be part of the brotherhood.

    --Mike
     
  4. tcannon

    tcannon Formula 3

    Feb 18, 2009
    1,763
    Norman, OK
    Full Name:
    Todd Cannon
    #4 tcannon, Jul 23, 2012
    Thanks for the input Mike! I am sure at one point or another, this is going to help all of us in The Brotherhood. ;)
     
  5. Extreme

    Extreme F1 Rookie

    May 26, 2010
    2,515
    Northern Utah
    Full Name:
    Erick
    #5 Extreme, Jul 23, 2012
    Mike, can you take a pic or show me on a parts diagram where the idle control valve is located?
    I have a 355 so it might not be the same as yours, I'm just curious to see what this part is.

    Glad it worked for you cause there is nothing worse than paying huge ferrari taxes on parts.
     
  6. mj_duell

    mj_duell Formula 3

    Nov 20, 2004
    1,421
    S. Glastonbury, CT.
    Full Name:
    Mike
    #6 mj_duell, Jul 23, 2012
    I looked around for a picture for you but could not find one. If I have a chance I will take one and post it. The part numbers for the 348 are listed below:

    Ferrari 142432
    Bosch 0280140505

    --Mike
     
  7. Magnum6464

    Magnum6464 Formula Junior

    Mar 5, 2006
    319
    Quebexico, Canada
    Full Name:
    Mario
    #7 Magnum6464, Jul 23, 2012
    Last edited by a moderator: Sep 7, 2017
  8. gothspeed

    gothspeed F1 World Champ

    May 26, 2006
    10,244
    U.S.A.
    Full Name:
    goth
    #8 gothspeed, Jul 25, 2012
    I think I'm gonna clean mine this weekend :)
     
  9. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    34,749
    Ontario, Canada
    Full Name:
    Mike
    #9 AceMaster, Jul 27, 2012
    Mike, nice job.
     
  10. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,611
    The Brickyard
    Full Name:
    The Bad Guy
    #10 ernie, Sep 26, 2012
    Just cleaned mine out today.
     
  11. st4rk

    st4rk Formula Junior
    BANNED

    Dec 7, 2011
    447
    #11 st4rk, Sep 26, 2012
    Doing mine tomorrow :D It's been on my to do list for a while.
     
  12. Lino

    Lino Formula Junior

    Jul 7, 2010
    923
    Montreal Canada
    Full Name:
    Lino
    #12 Lino, Sep 26, 2012
    I have been having that dip issue on my Mondial T, I had wondered about that Idle control valve.

    So what side to I pour the cleaner in.....

    I had sourced the part as the same on a KIA....yes I know... But it is. It's still is a pricey item and if it could be cleaned out that is great. So just to make sure all I do is take it apart and pour cleaner/gas into it.

    Lino
     
  13. porphy

    porphy Formula 3
    Silver Subscribed

    Dec 9, 2009
    1,209
    LouisvilleKY/Switzld
    Full Name:
    Randall Gatz
    #13 porphy, Sep 27, 2012
    Lino, Could you give us the KIA part number or reference for it? Maybe list it in the sticky part thread. Thats good info.
     
  14. Lino

    Lino Formula Junior

    Jul 7, 2010
    923
    Montreal Canada
    Full Name:
    Lino
    #14 Lino, Sep 27, 2012
  15. Lino

    Lino Formula Junior

    Jul 7, 2010
    923
    Montreal Canada
    Full Name:
    Lino
    #15 Lino, Sep 27, 2012
    Here is what I matched. Can anyone confirm if this a match?

    By the way i can not locate my idle air control valve. I don't see it?
     
  16. Moiluck

    Moiluck Formula Junior

    Mar 20, 2009
    326
    Spain
    Full Name:
    Moisés
    #16 Moiluck, Sep 28, 2012
    Thanks for sharing!

    Very helpful, simple and cheap, just how I like.

    I will clean mine too, but what side did you put the MAF cleaner?
     
  17. fxdwgs

    fxdwgs Formula 3

    Aug 22, 2006
    1,016
    Sjobo, Sweden
    Full Name:
    Bengt
    #17 fxdwgs, Oct 1, 2012
    ......since the car has been "garaged" for the winter this is something I have to look into.

    One Q though........what is MAF cleaner........MAF I know......but the cleaner for MAF´s.......what is that???

    //B//
     
  18. mj_duell

    mj_duell Formula 3

    Nov 20, 2004
    1,421
    S. Glastonbury, CT.
    Full Name:
    Mike
    #18 mj_duell, Oct 1, 2012
    You can spray the cleaner into either opening. The ports are big enough that you can look in and see the parts you are cleaning, so its a fairly straight forward job.

    --Mike
     
  19. mj_duell

    mj_duell Formula 3

    Nov 20, 2004
    1,421
    S. Glastonbury, CT.
    Full Name:
    Mike
    #19 mj_duell, Oct 1, 2012
  20. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #20 Mr.Chairman, Oct 1, 2012
    The gold connector kit from Dave Helms (Scuderia Rampante) is something to consider.. Creates a solid foundation for the engine bay harness.. Its a must..

    R
     
  21. fxdwgs

    fxdwgs Formula 3

    Aug 22, 2006
    1,016
    Sjobo, Sweden
    Full Name:
    Bengt
    #21 fxdwgs, Oct 2, 2012
  22. dahveedem

    dahveedem Formula 3

    Mar 12, 2012
    1,603
    Maryland
    Full Name:
    David
    #22 dahveedem, Oct 5, 2012
    Cleaned mine tonight --- still have a little rattle so that wasn't it.
    BUT, and maybe it's just placebo effect... she seems a little quicker / smoother on throttle.

    However, tonight was the first stumble at a light I've had but I think that is due to the fuel regulators which someone suggested replacing due to my more frequent warm start issues.

    But this was an easy clean.

    Thanks.

    David
     
  23. porphy

    porphy Formula 3
    Silver Subscribed

    Dec 9, 2009
    1,209
    LouisvilleKY/Switzld
    Full Name:
    Randall Gatz
    #23 porphy, Dec 4, 2012
    Did you forget to put the KIA part in the post?
     
  24. ga68

    ga68 Karting

    May 22, 2014
    54
    Mulhouse - FRANCE
    Full Name:
    Gaëtan
    #24 ga68, Mar 5, 2017
    Hello,
    Coming to see the subject, I wondered,
    What product do you use to do the cleaning?
    Thanks to you for all these very enriching post post.
     

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