P023D

2017-10-10

Description:

  • Signal correlation problem detected between the Manifold Pressure (MAP) sensor and Turbocharger

Possible Symptoms:

  • Possible large loss of power above idle

  • Excessive additives in the fuel can cause erratic sensor readings and cause the fuel to boil off at lower temperatures, causing the sensor to malfunction

  • Engine may start and then stall

Possible Causes:

  • Boost pressure sensor harness is open or shorted

  • Boost pressure sensor circuit poor electrical connection

  • Faulty boost pressure sensor

  • Faulty Turbo/Super Charger

  • Engine over temperature

  • Ignition misfire exceeds the calibrated threshold

  • Faulty Knock sensor (KS)

Related Parts:

  • Turbocharger: Turbocharger compresses in more air into the engine, hence producing more power output. Problem leads to power loss

  • Manifold Pressure Sensor: Manifold Pressure sensor measures the pressure of air flowing in the engine from outside to ensure proper fuel combustion. This car's malfunctioning pressure sensor will lead to engine misfire, poor fuel economy & rough running

Possible Solutions:

  • Inspect the wastegate actuator rod to the turbo. Repair it if its bent

  • A PCM replacement

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