Slow down light on my 348 is on | FerrariChat
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Slow down light on my 348 is on

Discussion in '348/355' started by Mera, May 29, 2007.

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  1. Mera

    Mera Formula Junior

    Aug 13, 2005
    768
    Milwaukee, WI
    Full Name:
    Rodney Dickman
    #1 Mera, May 29, 2007
    My just bought 1990 348 TS with 17,000 miles and only driven less than 200 miles since I bought it now has a problem with a slow down light. This is at idle when cold. I took it out of my garage today and it sat outside several hours. Temps today in the mid 80's. Started it up and the slow down light for 5-8 is on. This is with a cold engine. The 348 curse starts.

    Bought this 348 From Continental in Chicago. I tried to get them to tell me the previous owners name as I wanted to talk to him. They refused to give me that information. So I wonder what they may have been hiding from me? I have a few other problems I need to post yet.

    Rodney
    1990 348 TS
     
  2. speedy_sam

    speedy_sam F1 Veteran

    Jul 13, 2004
    5,559
    TX
    Full Name:
    Sameer
    #2 speedy_sam, May 29, 2007
  3. Bullfighter

    Bullfighter Two Time F1 World Champ
    Lifetime Rossa Owner

    Jan 26, 2005
    22,607
    Gates Mills, Ohio
    Full Name:
    Jon
    #3 Bullfighter, May 29, 2007
    If you just bought it from Continental, I would have them look at it. Not sure you're going to get much info/assistance from the previous owner anyway.
     
  4. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
    Full Name:
    Mr. Sideways
    #4 No Doubt, May 29, 2007
    Both SLOW DOWN lights, plus your ABS/Brake lights should come on for a little less than 15 seconds as they do their self-tests upon a cold startup.

    If a SLOWDOWN light stays on for as long as your motor is running, then you'll want to pull your engine codes first, and perhaps swap exhaust ECUs from side to side (see above link at the348.com).

    When do your lights come on, and do they turn back off?
     
  5. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
    Full Name:
    Mr. Sideways
    #5 No Doubt, May 29, 2007

    That's generally considered bad form. When a new Buyer wants information from the old Owner, 9 times out of 10 the new Buyer wants money or other compensation...hence, Sellers are reluctant to divulge such information (and if they did, the Dealership would be liable for many problems).
     
  6. 348SStb

    348SStb F1 Rookie
    Owner

    Apr 9, 2004
    2,991
    Palm Beach County, FL or Nassau County, NY
    Full Name:
    Dave
    #6 348SStb, May 29, 2007
    Don't panic. This is not a "348 curse." We don't use that kind of language around here!

    If a Slow-Down light comes on (and remains illuminated) while the engine is cold, that means (probably) that you have a bad Catalyzer Temperature ECU. The failed ECU could be causing the false Slow-Down light to come on.

    I suggest you post this thread in the Technical section. Look for responses from Ferrari masters such as Rifledriver, Dr_Ferrari, tbakowsky, Miltonian, Ernie, etc.
     
  7. Houston348

    Houston348 Formula 3

    Oct 18, 2006
    2,297
    #7 Houston348, May 30, 2007
    too funny.. thats the first thing the F dealer will ask when you call up.. but Speedy is right. i had my 1/4 engine light come on. then took it out on the highway and got on it.. went off, stayed off!
     
  8. Mera

    Mera Formula Junior

    Aug 13, 2005
    768
    Milwaukee, WI
    Full Name:
    Rodney Dickman
    #8 Mera, May 30, 2007
    Gas is new. Put fresh gas in about 80 miles ago.

    QUOTE:
    too funny.. thats the first thing the F dealer will ask when you call up.. but Speedy is right. i had my 1/4 engine light come on. then took it out on the highway and got on it.. went off, stayed off!


    From: http://www.the348.com/technical/Tech/348.html#SlowDownLights


    After 5 minutes or so of showing the SLOW DOWN 1-4 and/or SLOW DOWN 5-8 warning light, your A/F ECU's will shut off on or both banks of cylinders.

    Should I try to drive it and chance it goes out before one or both banks shuts down? It takes 5 minutes just to get hot enough to rev it up to red line.


    I need to get it working as I need to do my WI emissions test in less than 2 weeks now.

    Rodney
     
  9. BT

    BT F1 World Champ
    Lifetime Rossa

    Mar 21, 2005
    15,291
    FL / GA
    Full Name:
    Bill Tracy
    #9 BT, May 30, 2007
    Most likely a bad exhaust ECU. Try switching the sensor connector from the other side and see if the light shows the other bank. If so get a new (or used) ECU. I bought a few from FBB. If you need one send me a PM and I'll reverse the curse! Sometimes a brother needs a little help. I always say, give my brother a hand up, not a hand out... Oh wait, that's P & R....
    :D
    BT
     

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