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  1. D

    Transmission noise when downshifting/ Kick down.

    That's why I said detonation. It sounds like rocks in a coffee can.
  2. D

    Transmission noise when downshifting/ Kick down.

    No. That's not what I am saying at all. The ecu has timing tables based off base timing. It will advance or retard timing based on load and rpm. During this advance it will retard timing based on detected knock. So without the knock sensor it won't retard the timing when knock is detected...
  3. D

    Transmission noise when downshifting/ Kick down.

    I doubt it retards it beyond base. But shouldn't it be capable of retarding it from it's advanced state while accelerating? Ie: based on load, airflow, and rpm the ecu calculates timing needed is 21*. The knock sensor is detecting knock at 21 so the ecu retards until knock disappears.
  4. D

    Transmission noise when downshifting/ Kick down.

    Without a knock sensor the ecu can't retard timing when it detects knock. That's a pretty sketchy setup
  5. D

    Transmission noise when downshifting/ Kick down.

    Man that sounds like detonation. High load right before kick down and to much timing/not enough octane.
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