Please let me know whats the meaning of this Engine Error code,

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Volkswagen GT TSI 1.4 MKV 2007 model ( Please let me know which part need to be replaced or repairs to be done) Confirmed Trouble Codes -P2015: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1) (Powertrain, Generic) Pending Trouble Codes -P2015: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1) (Powertrain, Generic) Permanent Trouble Codes -none Freeze Frame -P2015: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1) (Powertrain, Generic) -Fuel system status: Fuel system 1: Open loop (2) -Fuel system status: Fuel system 2: NA -Calculated engine load: 16.5 % -Engine Coolant Temperature: 67 °C -Short Term Fuel Trim - Bank 1: 0.0 % -Long Term Fuel Trim - Bank 1: 10.2 % -Intake Manifold Absolute Pressure: 37.0 kPa -Engine RPM: 952 RPM -Vehicle Speed Sensor: 12 km/h -Ignition Timing Advance for #1 Cylinder: 6.0 -Intake Air Temperature: 39 °C -Absolute Throttle Position: 15.3 % -Time Since Engine Start: 116 s -Fuel Rail Pressure: 5530 kPa -Commanded Evaporative Purge: 3.9 % -Barometric Pressure: 83 kPa -Control module voltage: 13.88 V -Absolute Load Value: 26.7 % -Fuel/Air Commanded Equivalence Ratio: 1.259 -Relative Throttle Position: 5.5 % -Ambient Air Temperature: 27 °C -Absolute Throttle Position B: 15.3 % -Accelerator Pedal Position D: 14.9 % -Accelerator Pedal Position E: 7.5 % -Commanded Throttle Actuator Control: 7.1 % -Long Term Secondary O2 Sensor Fuel Trim - Bank 1: 0.8 % Diagnostic information provided by OBD Auto Doctor