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Thread: WBO2 Sensor Free Air Calibration

  1. #1

    Default WBO2 Sensor Free Air Calibration

    Can the Holley HP EFI perform a free air calibration on the wideband oxygen sensor?

  2. #2
    Join Date
    Nov 2013
    Chicago IL


    There is no "Free Air Calibration" for Holley WBO2 Sensors. They are pre-calibrated from the factory using custom resistors. And Only Holley Sensors can be used with the HP/Dominator ECUs:
    Part #554-100
    Part #554-101
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