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Citroen C5 2.0 HDI 136HP - jerking the engine black smoke from the pipe from tim

naizul79 13572 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16779415
    naizul79
    Level 7  
    Hello,
    I have a problem with the C5 2.0HDI 136HP every about 600-800km the engine starts to jerk, the black smoke from the exhaust pipe flies, it does not react to the accelerator pedal it does not want to turn on it it takes about 10-15 minutes of driving on the road. As during this jerking you will turn off the engine and start it as it cools down, it doesn't tug until it warms up. Apparently he must "finish" his process. I changed the high pressure pump both valves before and after the pump and no effects. Recently, the wires from the pressure difference sensor at FAP have been cleaned because I thought it was related to FAP, but I don't think so ... I have recently seen on one of the topics that it could be related to the EGR valve or someone had something similar? After connecting to the computer the error "solenoid valve regulating the fuel flow. Fuel flow too low" and the second error "regulating the fuel pressure. Pressure too low" jumped out
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  • #2 16780656
    Pawlowski26
    Level 1  
    Have you checked the injection?
  • #3 16781197
    naizul79
    Level 7  
    I did not check the injections but I heard from many mechanics that the injections would give symptoms all the time. Because the car is exemplary on a daily basis
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  • #4 16788590
    Anonymous
    Level 1  
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  • #5 16789277
    naizul79
    Level 7  
    The high pressure pump was replaced, the valve before the pump and nothing changed, it happened the same every now and then on a warm engine, something switches on, a relay is heard and it starts to choke, jerks, does not respond to the gas pedal and after a while stops and again a good few hundred kilometers without problems. As it was connected to the computer, all the parameters were ok. Unfortunately, I don't have a computer, I can't go with it because that would solve the problem, unfortunately it started to happen a few times and I was already approaching the workshop and stopped pulling.
    Sometimes it happens that when I move from one it chokes and it doesn't react to gas for a moment .. it is dangerous when it starts to move ...
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  • #6 16789486
    Anonymous
    Level 1  
  • #7 16790244
    naizul79
    Level 7  
    The high pressure sensor (4) and the fuel sensor on the rail (8) were changed.
    Can such a test be carried out on the website? Unfortunately, I don't have the conditions and access.
    And if the injection if something was wrong all the time would not work properly? I would rather go to the EGR I read on one of the forums that it helped, some wires or maybe control ...
    Thanks greetings
  • #8 16790816
    Anonymous
    Level 1  
  • #9 16790905
    naizul79
    Level 7  
    Hello
    Regarding the year of year 2005. combo.
    I do not insist that I will not search the memory of the control computer. Rather, that's where I have to start.
    Thanks to let me know what came from searching the computer's memory.

Topic summary

The discussion revolves around a Citroen C5 2.0 HDI 136HP experiencing engine jerking and black smoke emissions from the exhaust after driving 600-800 km. The owner reports issues with the accelerator pedal response and intermittent engine performance, particularly when warm. Previous attempts to resolve the problem included replacing the high-pressure pump and associated valves, but the symptoms persisted. Error codes related to low fuel flow and pressure were noted. Participants suggested checking the fuel injection system, including conducting overflow tests on the injectors, and considering the EGR valve as a potential source of the issue. The owner acknowledged the need to investigate the control computer for further diagnostics.
Summary generated by the language model.
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