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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » What causes boost readings on N/A motor???

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Author Topic: What causes boost readings on N/A motor???
Keepinitoldskool
Member
Posts: 1
Post What causes boost readings on N/A motor???
on: October 7, 2020 (GMT)

Got an Expedition 3v 5.4, maf vehicle drive by wire
Manifold vacuum reading is always in the boost range. Why? How is this value calculated on vehicles without an MAP sensor? I know my truck ain’t making 15 pounds of boost in n/a trim.
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