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Related to Switches / Regulators / Sensors for Cayenne 9YA (E3) 2018-2023
Special Order item
PAC906051C
Product Information
Product Information
Boost Pressure Sensor.

The Boost Pressure Sensor is a high-quality engine management component designed to monitor intake manifold and turbocharger boost pressure within the engine's forced induction system. The sensor continuously measures air pressure levels and transmits precise data to the engine control unit (ECU), enabling accurate control of turbocharger output, fuel injection, ignition timing, and overall engine performance.

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Diagram Ref No 3

Manufactured to Porsche quality standards, the sensor is engineered to provide fast, accurate pressure readings in demanding engine environments. It plays a critical role in maintaining optimal turbocharger efficiency, engine responsiveness, fuel economy, and emissions compliance.

What This Product Does:

  • Measures boost and intake manifold pressure in real time
  • Sends pressure data to the engine control unit (ECU)
  • Helps regulate turbocharger boost levels
  • Supports accurate fuel injection and ignition timing adjustments
  • Optimises engine performance, efficiency, and emissions
  • Protects the engine from overboost or incorrect pressure conditions

Symptoms Of Wear Or Failure:
  • Reduced engine power or acceleration
  • Turbocharger underboost or overboost conditions
  • Engine entering limp-home mode
  • Check engine light illumination
  • Poor throttle response Increased fuel consumption
  • Erratic engine performance or hesitation
  • Boost pressure-related fault codes stored in the ECU

Why Replacement Matters:
  • Restores accurate boost pressure monitoring
  • Ensures correct turbocharger operation and boost control
  • Improves throttle response and engine performance
  • Supports fuel efficiency and emissions compliance
  • Prevents unnecessary strain on turbocharger and engine components
  • Reduces the risk of limp mode activation and ECU faults
  • Maintains reliable communication between the sensor and engine management system
  • Helps preserve the performance, reliability, and driving characteristics of the vehicle



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PAC906051C
PAC906051C

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