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Broadband Probe: Verifying VAG Operation - 5-Wire, VCDS Program, Lambda, Group 32 & 33

foreverforyou20 6348 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16957720
    foreverforyou20
    Level 14  
    Hello. How to check the operation of the broadband probe (5 wires)?
    I have a VCDS program.
    On which channel to measure the probe. Group 32, 33?
    What indications to expect?
    I must admit that narrowband lambda measurement is familiar to me, but not broadband, hence my question.
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  • #3 16958419
    foreverforyou20
    Level 14  
    Nothing is explained in this video, just switching between different channels.
  • #4 16958525
    andrzej20001
    Level 43  
    You have channel 31
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  • #5 16958566
    foreverforyou20
    Level 14  
    So the probe should go down to 1.0 all the time?
  • #6 16958816
    andrzej20001
    Level 43  
    The perfect mix has a factor of 1
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  • #7 20127091
    KapitanSTS
    Level 30  
    Hello.

    I have a similar problem. I would like to diagnose the broadband lambda probe and I wonder if this voltage in channel 033 tells us something? At idle speed, the voltage of 1.5-1.6V, after holding the gas at 2000-2500 rpm and releasing it, jumps to 5V.

    Lambda 1 and 2 probes hover around 1.

Topic summary

The discussion revolves around verifying the operation of a broadband lambda probe using the VCDS program. Users inquire about the appropriate channels for measurement, specifically Group 32 and 33, with one user confirming that channel 31 is relevant. The expected voltage readings for the probe are discussed, with ideal conditions suggesting a factor of 1 for a perfect air-fuel mixture. Another user shares their experience, noting voltage readings of 1.5-1.6V at idle and spikes to 5V when revving the engine, while lambda probes 1 and 2 remain around 1. The conversation highlights the differences between narrowband and broadband lambda measurements.
Summary generated by the language model.
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