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MY 550 CUTS OUT 1/2 THE POWER

Discussion in '456/550/575' started by BWS550, Apr 18, 2005.

  1. BWS550

    BWS550 Wants to be a mod

    Apr 1, 2002
    8,933
    NEW JERSEY
    Full Name:
    BRUCE WELLINGTON
    WHILE DRIVING MY 550 FROM A DRIVE YESTERDAY, ALL OF A SUDDEN, I LOSE 1/2 MY POWER AND THE "SLOW DOWN" LIGHT STARTS TO FLASH

    ALL TEMPS WERE FINE AND I JUST COASTED HOME VERY SLOW

    CHECKED THE FLOOR, AND ENGINE, NO LEAKING OF ANY FLUIDS

    MY THOUGHT IS THAT THE ECU UNIT WENT BAD, OR ITS NOT FIRING UP ON ALL 12 CYLINDERS..

    HOPEFULLY ITS A LOOSE CONNECTION OR SOMETHING IN MY $$$ FAVOR

    THE CAR WILL BE FLATBEDDED TO WWOC THURS

    ANYONE ELSE HAVE THIS PROBLEM WITH THEIR 550??

    THANKS ALL

    BRUCE
     
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  3. 134282

    134282 Four Time F1 World Champ
    BANNED

    Aug 3, 2002
    40,647
    California
    Full Name:
    Carbon McCoy
    Damn, that sucks... i'm sure it's something minor Bruce... Go open the hood and just start jiggling things... :)
     
  4. frefan

    frefan F1 Veteran

    Apr 21, 2004
    7,288
    Your car went into 'Limp mode'. The computer thinks the cats are overheating. Could be a sensor, ECU, or a ground problem.
     
  5. BWS550

    BWS550 Wants to be a mod

    Apr 1, 2002
    8,933
    NEW JERSEY
    Full Name:
    BRUCE WELLINGTON
    THATS CORRECT...LIMP MODE

    MY TR ONLY HAD ONE MODE "STOP CAR"

    CANT SEE THE CATS GETTING HOT...HOPEFULLY A 10 MINUTE FIX...WILL SEE

    DO YOU OR HAVE YOU HAD THE SAME PROBLEM WITH YOUR 550??

    THANKS,
    BRUCE
     
  6. teachdna

    teachdna Formula Junior

    Sep 1, 2001
    374
    Cincinnati
    Full Name:
    Jeffrey Robbins
    The exact same thing happened to me. It turned out to be a grounding problem. An easy, no pain, low dollar fix- if they diagnose it the right way.
     
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  8. BWS550

    BWS550 Wants to be a mod

    Apr 1, 2002
    8,933
    NEW JERSEY
    Full Name:
    BRUCE WELLINGTON
    THANKS FOR THE LESS PAINFULL $ ANSWER

    I HAD THE CAR OUT ALL DAY..NO PROBLEMS UNTIL 1ST GEAR HAD NO MORE GUTS, THEN THE IDIOT LIGHT WENT ON "SLOW DOWN"

    I DONT THINK THE SENSOR WENT ON THE CATS, BUT WILL SEE

    THANKS ALL

    BRUCE
     
  9. Mike360

    Mike360 F1 Rookie

    Feb 18, 2004
    3,346
    Sydney, Australia
    Full Name:
    Mike
    Maybe you need a new O2 sensor?

    I have had a plethora (Non Ferrari) of cars that have gone into "Limp Mode", and its always turned out to be the o2 sensor Fuking up....

    Just trying to help a brother!
     
  10. mike550

    mike550 Formula Junior

    Aug 20, 2003
    859
    California - LA & SF
    Full Name:
    Mike G
    I dont think it is the O2 sensor. On the 550 the O2 sensor won't send it in to limp more - just triggers the "check engine" light - still has full power.
     
  11. Speed Racerette

    Speed Racerette Formula 3

    May 24, 2004
    1,319
    Dallas, TX
    Full Name:
    She wants Revenge
    Bruce-

    I had the EXACT same problem with the 360 about a month ago....the problem was with the temp sensor on the CATS. James at Norwoods took it out for a long drive with the SD2 hooked up on it and it finally acted up for him...he watched the temp went from 600 degrees and suddenly jumped up to 1100 degrees (which is not how it would behave if the cats were really overheating), slow down light went on and then 1/2 bank shut down - sounded like a revved up sewing machine! Then it went back to normal 600 degrees again.

    The sensor was not expensive and very easy for him to swap. The problem was intermittent and took two visits to Norwoods before the problem would show itself (of course, it happened all the time when it wasn't at the shop!)\

    Good luck!

    Frances
     
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  13. BWS550

    BWS550 Wants to be a mod

    Apr 1, 2002
    8,933
    NEW JERSEY
    Full Name:
    BRUCE WELLINGTON
    THANKS GUYS AND GIRLIES FOR THE VALUABLE INFO

    I WILL SEE WHAT HAPPENS THURS

    THANKS AGAIN,

    BRUCE
     
  14. bobafett

    bobafett F1 Veteran

    Sep 28, 2002
    9,193
    Bruce - give me your number again. This is the one item of 550s with which I have extensive experience. Or call my cell. It's way too long to type out...

    --Dan
     
  15. Andreanna

    Andreanna Karting

    Nov 4, 2003
    148
    Hi guys,
    Just got the update from WWoC about the 550.
    Left sided fuel pump needs to be replaced.

    Anyone know (besides the obvious of course)...where to look for this part???
    Part no#173894.

    Thanks!
     
  16. Bill Sawyer

    Bill Sawyer Formula 3

    Feb 26, 2002
    2,108
    Georgia
    The 550 automatically goes into limp mode when a limp-wristed pansy drives it for too long. Give the keys to Andrea and she'll get things straightened out!
     
  17. BWS550

    BWS550 Wants to be a mod

    Apr 1, 2002
    8,933
    NEW JERSEY
    Full Name:
    BRUCE WELLINGTON
    THANKS BILL FOR YOUR WARRANTED ANSWER

    HOW ARE YOU DOING, ITS BEEN A WHILE??

    BIZ OK, FAMILY??

    ILL TRY AND CALL YOU NEXT WEEK

    REGARDS MY FRIEND,

    BRUCE
     

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