355 M2.7 cutting , run on 6 or 8 cyl | Page 2 | FerrariChat
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355 M2.7 cutting , run on 6 or 8 cyl

Discussion in 'Technical Q&A' started by fana355france, Oct 1, 2006.

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  1. ernie

    ernie Two Time F1 World Champ
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    #26 ernie, Jun 13, 2007
    Have you checked to make sure the problem isn't fuel related? Are your fuel pressure regulators okay?
     
  2. fana355france

    fana355france Formula Junior
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    #27 fana355france, Jun 14, 2007
    My injectors are back today, all okay , tomorow i will check the o2 sensore and I must find someone having the tool to test the presure regulator (presure indicator)...
    another step tomorow ! after so much hours on it !
    thanks for help
    nico
     
  3. fana355france

    fana355france Formula Junior
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    #28 fana355france, Jun 15, 2007
    checked today the thermocouple ohm resistor seam to be ok, ohm increse withe cat temp.
    O2 sensor have from 0.1 to 06 volt on left on grey and black wire.
    O2 sensor have from 0.1 to 1,1 volt on right on grey and black wire.
    I will try to find a mecanic to check fuel presure.
    bye
     
  4. fana355france

    fana355france Formula Junior
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    #29 fana355france, Jul 6, 2007
    I found the problem:
    I tested my plug wires putting a plug on it and looking for fire on it.
    all clylinders seamed ok
    I changed plug wires but thoses I bought were not good
    I tested the ohm resistor of each plug wire and 2 where cut intoo the plug cap.So when i tested each plug wire with a rev metter it seamed ok but finaly the problem was not the wire but the plug cap...So much work for it !
    changed for OE products and now the car is ok...
    I found too whater intoo the head around the plug for cyl 5 and 6 and it was thos that shut down.So I think having whater here can destroy the plug cap (And I have the good seals but...)
    Thanks for so mny answers to my questions.
    Bye
    nico
     
  5. ernie

    ernie Two Time F1 World Champ
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    #30 ernie, Jul 7, 2007
    Thanks for the update Nico.
     
  6. PAP 348

    PAP 348 Ten Time F1 World Champ
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    #31 PAP 348, Jul 7, 2007
    Sweet. :):)
     
  7. synchro

    synchro F1 Veteran

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    #32 synchro, Jul 13, 2007
    Sometimes the O2 sensor will get a buildup on it. Cleaning it by wiping it off with brake cleaner can improve its performance and save you the costly replacement.
     
  8. rosso tweeks

    rosso tweeks Rookie

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    #33 rosso tweeks, Jul 17, 2007
    It's a 355 boys, CHECK CYLINDER LEAK DOWN.
     
  9. gothspeed

    gothspeed F1 World Champ

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    #34 gothspeed, Jul 17, 2007
    I like that idea, though how do you identify which cylinder is bad?

    Great job!!! :)
     
  10. fana355france

    fana355france Formula Junior
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    #35 fana355france, Jul 19, 2007
    I found the the cylinders fault looking the ohm resistor of each wire , 2 where cut...
     
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