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Home >> Volvo >> 2012 >> C70 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) - Description Of Behaviors And Frozen Values >> Engine Electrical >> Description Of Frozen Values >> 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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