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Home >> Volvo >> 2012 >> C30 T-5 R-Design, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Control Module (ECM) - Description Of Frozen Values And Behaviors >> Engine Electrical >> Description Of Frozen Values, Engine Control Module (B5254T7; 2008-2013) >> Boost Pressure (HPA)
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Boost Pressure (HPA)

The value is calculated from the boost pressure sensor and indicates the pressure in the induction system after the turbocharger but before the throttle.

The engine control module (ECM) calculates boost pressure from the boost pressure sensor. The pressure is relative to atmospheric pressure.

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