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Knock Sensors

Discussion in 'A3/S3 Forum (8L Chassis)' started by Barks, Jun 28, 2012.

  1. Barks
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    Barks Member

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    Hello,

    Does anyone know if there is a difference between the APY and BAM knock sensor output voltages?? I believe the PN's to be different.

    Thanks

    Dave
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  2. beachbuggy
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    beachbuggy Well-Known Member

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    You still running apy ones then?
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  3. Barks
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    Barks Member

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    Yep sure am, It just crossed my mind last night.....
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  4. beachbuggy
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    beachbuggy Well-Known Member

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    Yes they Definately need to be changed. Not sure why but they need to be changed, but when I asked I was told the frequency was different due to different chip sets on the ecu.
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  5. Barks
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    Barks Member

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    mmm, might be the reason for the low CF..... off to ebay.

    Any wideband AMK, BAM sensors???
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  6. beachbuggy
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    beachbuggy Well-Known Member

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    They are the ones without wires, would have thought amk and bam would be the same. Mine cost £13 each new I think for a patent part. I know it's a risk with something as sensitive as knock but they seem to work fine.
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  7. Barks
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    Barks Member

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    Cheers, I will have look
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  8. Barks
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    Barks Member

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    BAM knock sensors on order, I will do a log before and after changing from the APY ones. Then we will know if it required for a APY to BAM wideband conversion.
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