The Chevrolet Silverado equipped with a 6.6L Turbo Diesel was down on power, the malfunction indicator lamp (MIL) was illuminated and a PO101 mass air flow sensor (MAF) performance code was set in the current failure and history file, and the Power Reduced Message was displayed on the instrument cluster. Running the diagnostics on the trouble code had been futile. Deleting the trouble code would restore engine performance, but that was not the long term solution…
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