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Thread: Throttle body adaptation, Leon 2001 AKL 1.6 SR. Result correct?

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  1. Re: Throttle body adaptation, Leon 2001 AKL 1.6 SR. Result correct? 
    #31
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    Seeing the value in 099 bit 8 fluctuate between 1 and 0 is showing the lambda sensor reading oscillating between rich and lean which is correct. 00537 lower limit certainly points towards the pressure sensor and 00525 implausible suggests the ECU does not like the aftermarket sensor you fitted.
    IF you like me are furious at this undemocratic ban on the sale of new petrol and Diesel engined cars, please sign this petition https://petition.parliament.uk/petitions/556842
     
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  2. Re: Throttle body adaptation, Leon 2001 AKL 1.6 SR. Result correct? 
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    Quote Originally Posted by Crasher View Post
    Seeing the value in 099 bit 8 fluctuate between 1 and 0 is showing the lambda sensor reading oscillating between rich and lean which is correct. 00537 lower limit certainly points towards the pressure sensor and 00525 implausible suggests the ECU does not like the aftermarket sensor you fitted.
    Is there some other way the pressure regulator can fail that wouldn't show while testing it like I did?

    Maybe I should try another Lamdba sensor..? Would a Bosch be good to use?
     
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  3. Re: Throttle body adaptation, Leon 2001 AKL 1.6 SR. Result correct? 
    #33
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    I will only use the OE brand of sensor used on the engine, for the AKL that would be Bosch which is the usual make although there are a few models that use NTK (i.e. NGK). Even then, a couple of times I have had problems with both brands when buying them aftermarket although it is rare. When the engine is running in Basic Settings 099, the lambda control is turned off so you can see where the mixture sits according to the mapping and other sensor inputs and view the Air to Fuel Ratio using a four gas analyser and ideally this needs to sit at around 1.
    IF you like me are furious at this undemocratic ban on the sale of new petrol and Diesel engined cars, please sign this petition https://petition.parliament.uk/petitions/556842
     
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