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knock high voltages, driving me crazy

Discussion in 'A3/S3 Forum (8L Chassis)' started by big nog, Mar 4, 2013.

  1. big nog

    big nog Member

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    comin home from work today, noticed a loud tap at low revs when setting off, been to garage and they say my dog bone mount has had it. could this cause the following fault ode to be thrown P0328, as I have have checked wiring to the sensors and swapped the knock sensors around, as well as retorquing both. any ideas would be appreciated, thanks. also checked the voltages on vagcom and cylinder 1 and 2 seem high compared to 3 and 4. had injectors ultrasoniced, new plugs, only thing I haven't had is new coilpacks. I have no noticeable misfire at all neither
     
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  3. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4

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    replace the wiring with screened cable right back to the ECU. Seen this a few times
     
  4. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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  5. big nog

    big nog Member

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    just looked on net now and apparently the thin black wire in the casing should go to the plug somehow, is this correct as I noticed mine was halfway up the loom
     
  6. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    There are 3 wires and a screen from memory but the sensor only requires 2 wires...

    <tuffty/>
     
  7. big nog

    big nog Member

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    ok thanks, just going to do what you did. hopefully will solve the problem
     
  8. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Did for me :)

    <tuffty/>
     

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