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Octavia 1.9 tdi 110km AFN - Excessive Smoke from Warm Engine: Sensor Replacement Ineffective

SiKsErr 6648 6
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  • #1 16827859
    SiKsErr
    Level 1  
    Hello, I have a problem with my skirt because it burns hard on warm, but only on warm. It is much better in the cold, but it does not go crazy. As much as I read and I know that the pump has failed, but my friend came up with the idea to remove the water temperature sensor. Shock and disbelief, 90 degrees and fired from the arrow. So on day 2 I jumped for a new sensor and the same again. Anyone have any idea what it could be and how to fix it?
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  • #2 16827917
    matimon22
    Level 25  
    Start with the starter and battery.
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  • #3 16828806
    zyganps
    Level 10  
    Hello, I do not have good news for you displacement of the sensor caused the controller to see the substitute value of -40 degrees and increase the injection dose, so rather the pump, but at the beginning check the battery and starter
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  • #4 16828830
    ptr92
    Level 19  
    Give the driver to someone to increase the starting dose a bit and you will drive a lot on this pump
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  • #5 16828850
    ftp.kowal
    Level 36  
    But why increase the dose. In 90%, repair of the starter is enough.
  • #6 16828864
    ptr92
    Level 19  
    We will not decide this now, because we do not hear the starter spinning. If it has a low rotational speed, it is also worth checking voltage drops on the masses.

    Added after 2 [minutes]:

    Changing the starting dose for me always solved the problem. In these cases, I had nothing to complain about in the work of the starter.
  • #7 16828878
    ftp.kowal
    Level 36  
    He will twist his ear, but he will not have a kick. Most twist the dose, and I fix the pacemaker, the effect is pretty much the same. So good smoking on warm.
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Topic summary

The discussion revolves around a Skoda Octavia 1.9 TDI (AFN engine) experiencing excessive smoke when the engine is warm, with improved performance when cold. The user suspects a faulty fuel pump but has replaced the water temperature sensor without resolving the issue. Responses suggest checking the starter and battery first, as a malfunctioning starter can lead to incorrect sensor readings and increased fuel injection. Some participants recommend adjusting the starting dose to mitigate the smoking problem, while others emphasize the importance of ensuring the starter operates correctly to avoid similar issues.
Summary generated by the language model.
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