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Citroen C4 1.6 HDi Engine Performance: Hard Work Under Load, Injection Parameters Explained

sly_1978 6213 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16398169
    sly_1978
    Level 20  
    The engine is generally flawless except for hard work under load, even knocking. And here is the question about the parameters of the initial and main injection. Both values show 1 '. According to the table already placed on the electrode, the first value is to be between 12.5-14 before TDC, and the second from 2-3 before TDC. What is responsible for this parameter? Ball stroke adjusted.
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  • #2 16398581
    manta
    VIP Meritorious for electroda.pl
    And the pressure on the ramp? How did you adjust the ball stroke?
  • #3 16398792
    sly_1978
    Level 20  
    The pressure on the rail is 251 bar at idle. The jump, of course, was regulated by the plant, but it was to no avail.
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  • #4 16399036
    WBART
    Level 19  
    As above 3000 the injection tapping stops to fix the wrong dose before injection
  • #5 16399099
    sly_1978
    Level 20  
    WBART wrote:
    As above 3000 the injection tapping stops to fix the wrong dose before injection


    A friend made injectors for me and it wasn't the first time he did it.
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  • #6 16399359
    WBART
    Level 19  
    I did not ask who to regenerate the injectors
  • #7 16399404
    sly_1978
    Level 20  
    Sorry it's not for you. In fact, over 3,000 you can't hear it. Today, when driving with the gas gently pressed, there was a jerk, similar to the loss of ignition in gasoline. Despite the assurances that coding is not required, I coded the injectors and it got even louder.
  • #8 16399428
    WBART
    Level 19  
    If, under the load above 3, the injection for regulation ceases.
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  • #9 16404364
    sly_1978
    Level 20  
    A set of replaced injectors. No change in engine running, still hard work. Does anyone know if the magnetic ring on the wheel affects the injection angle reading? The diagnosis was made - after replacing the controller, the correct control of the injector dose and the engine operation change appeared. If someone is willing to repair my driver (that one was only for diagnostics), please send me PW

Topic summary

The discussion centers on the performance issues of a Citroen C4 1.6 HDi engine, particularly under load where knocking occurs. The user inquires about the initial and main injection parameters, which are both showing a value of 1, while the expected values are between 12.5-14 before TDC for the initial injection and 2-3 before TDC for the main injection. Responses highlight the importance of rail pressure, which is noted to be 251 bar at idle, and the potential impact of injector calibration and coding. Despite replacing injectors, the engine continues to exhibit rough operation. There is also a query regarding the influence of the magnetic ring on the injection angle reading, and a mention of a controller replacement that improved injector dose control.
Summary generated by the language model.
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