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Overheating F40

Discussion in '288GTO/F40/F50/Enzo/LaFerrari/F80' started by WILLIAM H, Mar 22, 2015.

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  1. WILLIAM H

    WILLIAM H Three Time F1 World Champ

    Nov 1, 2003
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    HUBBSTER
    #1 WILLIAM H, Mar 22, 2015
    Drove F40 to car show today.

    She's a blast on nice fast roads but given even a little traffic for short time she drops down to 4 cyl. After she cools off she's back to 8

    Thought it was overheating fuel pumps, swapped those, same problem.

    Panty ideas? Thnx
     
  2. TimTifosa

    TimTifosa Karting

    Mar 21, 2007
    201
    #2 TimTifosa, Mar 22, 2015
    Has the car got cats? A cat overheating can trigger the ECU to switch off 1 bank of cylinders. A red dashboard light should come on. The cat may not be faulty, and it could be a faulty cat temperature probe or the electronic unit that the probe plugs in to.

    If it is a non cat car, each bank of cylinders has a separate ECU, so either an ECU has an
    intermittent fault, or some input to the ECU is causing it to shut down.
     
  3. ttforcefed

    ttforcefed F1 World Champ
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    Aug 22, 2002
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    #3 ttforcefed, Mar 22, 2015
    cld be the o2 sensors as well...
     
  4. WILLIAM H

    WILLIAM H Three Time F1 World Champ

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    #4 WILLIAM H, Mar 22, 2015
    Thnx, I'll check those out.
     
  5. Copozl1

    Copozl1 Rookie

    Nov 11, 2014
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    Hugo carvalho
    #5 Copozl1, Jul 5, 2015
    When the car goes into 4 cylinder mode, remove and replace the fuses for the injectors or the fuel pumps to determine which is acting up. Normally this will solve the problem immediately. You can also check the electronic Box under the rear bonnet and clean the connections since they are directly under an air vent which leaks water on it when wet.
     
  6. ross

    ross Three Time F1 World Champ
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    #6 ross, Jul 13, 2015
  7. frefan

    frefan F1 Veteran

    Apr 21, 2004
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    #7 frefan, Jul 14, 2015
    Did you try antibiotics?
     
  8. Scuderia-San-Antonio

    Scuderia-San-Antonio Formula 3

    Feb 27, 2005
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    Wes
    #8 Scuderia-San-Antonio, Jul 14, 2015
    my car did something similar once, changed the spark plugs and it never did it again.
     

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