424 Error on a Bully Dog GT Tuner for Nissan/Infinity Vehicles.

    November 16th, 2021

    This is a security error, mostly caused by low and/or fluctuating voltage at the ECM. 

    If this happens, disconnect the tuner and hook a battery charger up to the vehicle's battery with 10+ amps and retry the download.

    It is possible it can take several attempts on some vehicles

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