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maf scalers and offset?

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hi there just wondering how the maf scaler and offset works, need to re-calibrate the maf.

any help would be much appreciated cheers.

What engine and ECU?

Give us a little more information to work with Matthew. You may find our practical reflash tuning course is valuable as we cover the specifics of rescaling a MAF sensor. Typically the MAP sensor calibration table will be a 2D table of voltage or frequency vs airflow.