Knock sensors

Discussion in 'Engine & Drivetrain' started by 992dr, Oct 7, 2018.

  1. Tonyrodz

    Tonyrodz Full Access Member

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    I'm no expert, but I'd say yes. It retards the timing until there's no more knock. To reduce damage internally.
     
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  2. Chris05

    Chris05 TYF Newbie

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  3. Chris05

    Chris05 TYF Newbie

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    Ok thanks.
     
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  4. 992dr

    992dr Full Access Member

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    I'm going back tomorrow to have it read again. If I remember correctly, it was P0332

    Funny thing is, it drives fine. I really haven't noticed any difference. Yet :)

    Tony took the words out of my mouth.

    How many codes and what codes are they? Maybe if we see what they are we can help you figure this out.
     
  5. kbuskill

    kbuskill ***CAUTION*** I do my own stunts!

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    When you deleted cats did you program the downstream O2 sensors out or at least install anti foulers on them to trick them into thinking there are still cats present???
     
  6. Chris05

    Chris05 TYF Newbie

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    I have bank 1&2 too rich, excessive dump, and about 8 more emission codes.
     
  7. Chris05

    Chris05 TYF Newbie

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    No I didn’t, honestly didn’t know I needed too. What do I need to do there?
     
  8. kbuskill

    kbuskill ***CAUTION*** I do my own stunts!

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    You either need to have a custom tune to ignore the rear/downstream O2 sensors OR...

    You can buy a couple spark plug anti foulers and thread those into the O2 sensor bungs in the pipes and then thread your O2 sensors into those to trick the ECM into thinking there are still cats in place.

    Check out YouTube for more details on the anti fouler trick.
     
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  9. 992dr

    992dr Full Access Member

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    Well, engine lite cleared itself. Is that common? I put in a higher grade gas last night before coming home. Not sure if that did it or what.
    I'm still going to replace both but thought that was odd for it to clear.


    I'm wondering if you not having them tuned out caused more issues. I think they would clear out once you get a tune or do what kb said. If not post what codes and we can see what we can do to help out.
     
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