slo-down 1-6 lite | FerrariChat
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slo-down 1-6 lite

Discussion in 'Technical Q&A' started by ferrarinut, May 5, 2005.

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  1. ferrarinut

    ferrarinut Rookie

    May 4, 2005
    13
    #1 ferrarinut, May 5, 2005
    456gt- started my car after winter rest,during warm up noticed askip!replaced plugs and it ran perfect! took it for a ride and shortly it started running on 6 and the 1-6 slo-down lite came on! i headed back home and the lite went out and it ran fine ,then the lite came on again and ran poorly again! any suggestions????? is it the cat temp ecu ? any thoughs would be appreciated-thanks tommy jenkins
     
  2. Dcup

    Dcup F1 Veteran

    Jan 3, 2005
    8,645
    Between 2 Implants
    Full Name:
    Claude Balls
    #2 Dcup, May 5, 2005
    it sounds like the exaust ecu, its shutting down half the engine, either malfuction or the cat is too hot
     
  3. ferrarinut

    ferrarinut Rookie

    May 4, 2005
    13
    #3 ferrarinut, May 6, 2005
    john, thankyou for your reply! the dealer said it could be the cat temp ecu. does that sound like the culprit? is there one for each side? thanks again tommy
     
  4. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    #4 Verell, May 6, 2005
    There's a temp ecu for each cat. Depending on the year, there's 1 or 2 cats.

    Symptom can be either a bad cat temp ecu, or a bad temp sensor, or bad wiring.

    Try switching all connections between the cat temp ecus to see if the problem follows the ECU, or stays with the same bank.
     
  5. ferrarinut

    ferrarinut Rookie

    May 4, 2005
    13
    #5 ferrarinut, May 6, 2005
    verell, thankyou for your help. will try that this week! thanks again ,tommy jenkins
     
  6. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
    16,467
    Winston Salem, NC
    #6 Ricambi America, May 6, 2005
    Last edited by a moderator: Sep 7, 2017
    You're looking for this item: 154470

    Absolutely try swaping them side-to-side before buying a new one. They're around $600 each (probably $800+ at a dealer), if I remember correctly.
    Image Unavailable, Please Login
     
  7. ferrarinut

    ferrarinut Rookie

    May 4, 2005
    13
    #7 ferrarinut, May 7, 2005
    jack, thanks so much for the info .!!! tommy jenkins
     
  8. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    #8 Verell, May 8, 2005
    OK,
    Since the problem stayed w/1-6 when you swapped the ECUs, it's NOT an ECU. Either a flaky connection to, or the 1-6 bank temp sensor.

    Try swapping just the temp sensor (#14) plugs if the wires are long enough to reach w/o laying against a hot exhaust.

    Problem may go away because plugging/unplugging the connectors wiped some corrosion off. If so, switch them back, but put some Oxy-Solve (hw store elec. supply area), or dielectric grease on the contacts to keep air out of the joint before plugging them in again.

    If not, then the problem should go with the bad temp sensor & you'll get the 5-8 indicator. If so, then you'll need a new temp sensor.
     

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