Tuners 4.12.4 - Hp

: While driving (or idling), hit the Record button to monitor "Channels" like RPM, Manifold Pressure (MAP), and Short/Long Term Fuel Trims (STFT/LTFT) .

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If you are looking to "prepare" this specific version (for example, for a remote tuning session or to roll back from version 5.x): Check Hardware hp tuners 4.12.4