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Mini Cooper 1.6 120HP On the third cylinder misfire on a warm engine

mxas123 13935 15
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16853216
    mxas123
    Level 7  
    As in the subject. After warming up, the mini stops working on the 3rd cylinder.
    As of today they have been mentioned:
    * candles
    * coil
    *distribution
    * gasoline injectors
    * sensors from rollers
    * Vanos regulator
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  • #2 16853233
    sanfran
    Network and Internet specialist
    I would suggest checking the compression pressure on a hot engine.
  • #3 16853249
    mxas123
    Level 7  
    Compression pressure checked the same as on cold and above all equal
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  • #4 16853488
    Ireneo
    Level 42  
    Completely stops working?
  • #5 16853734
    mxas123
    Level 7  
    So totally zero reaction
  • #6 16853790
    moto-kord
    Level 28  
    Check what is missing when the 3rd cylinder stops (spark or fuel).
  • #7 16854015
    mxas123
    Level 7  
    It cuts off the fuel.
  • #8 16854162
    ladamaniac
    Level 40  
    He probably cuts the fuel because he sees the ignition falling out. Error p0303? Or something else?
  • #9 16854185
    mxas123
    Level 7  
    exactly that

    Added after 2 [minutes]:

    and the best part is that when you stop working on the third cylinder pushes off for a moment, the sensor will fight indifferently, which from the machine starts working on all cylinders
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  • #10 16854332
    mario 77
    Level 23  
    mxas123 wrote:

    and the best part is that when you stop working on the third cylinder pushes off for a moment, the sensor will fight indifferently, which from the machine starts working on all cylinders

    You write that then it goes to all cylinders but is it even or still something going on on this cylinder? And you watched in the parameters whether the ignition falls out and with what frequency on this cylinder immediately after starting a cold engine and what changes with the increase in temperature? With this engine I would not be surprised when it will be necessary to make the head.
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  • #11 16854360
    carrot
    Moderator of Cars
    Quote:
    push back for a moment the sensor will fight indifferently which from the machine begins to work on all cylinders

    The controller switches from sequential injection mode to group injection and that's why it happens
  • #12 16854361
    mxas123
    Level 7  
    I know that much too

    Added after 1 [minutes]:

    but what is the reason, because there are no ideas
  • #13 16855410
    moto-kord
    Level 28  
    mxas123 wrote:
    It cuts off the fuel.

    Have you changed the injections?
    Have you measured the injector resistance?
    Did you check the current record when the fuel was cut off?
  • #14 16856154
    mxas123
    Level 7  
    everything is checked but there is one idea
  • #15 16856155
    carrot
    Moderator of Cars
    This is not a problem with injections, the controller registers the ignition loss on one cylinder and turns off the injector on it to prevent unburned fuel from entering the catalyst
  • #16 16856241
    mxas123
    Level 7  
    gentlemen, I made one more pressure test on a hot engine, but on a detached phase adjuster motor and it turned out that there is only 3 bars so the problem has been solved thank you all for suggestions and best regards

Topic summary

The discussion revolves around a Mini Cooper 1.6 with a 120HP engine experiencing a misfire on the third cylinder after the engine warms up. Initial suggestions included checking compression pressure, which was found to be equal to that of a cold engine. It was noted that the engine completely stops responding on the third cylinder, leading to further investigation into whether the issue was related to spark or fuel delivery. It was determined that the fuel was being cut off due to detected ignition loss, possibly indicated by error code P0303. The conversation also touched on the controller switching from sequential to group injection mode, which could contribute to the issue. Ultimately, a pressure test revealed low pressure (3 bars) when the phase adjuster was detached, leading to the conclusion that this was the root cause of the problem.
Summary generated by the language model.
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