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Thread: 4.3 knock sensor swap

  1. #1
    Potential Tuner
    Join Date
    Aug 2008
    Location
    Salem, Oregon
    Posts
    8

    4.3 knock sensor swap

    KNOCK SENSOR.jpg

    I'm currently tuning a conversion vehicle that has a 1999 4.3 (1 wire resonant knock sensor) engine using a 2002 (2 wire flat-response knock sensor) PCM and calibration in it with the 1 wire sensor still being used on the engine. False knock like crazy. Other than changing this table in the tune, are there any other sensitivity setting that should be changed? I'm also assuming no segment swap is required for this....correct?

  2. #2
    Advanced Tuner RandomEnthusiast's Avatar
    Join Date
    Feb 2016
    Location
    Texas
    Posts
    333
    I think it would be easier to swap sensors. I don't think you can modify hz detection frequency.