Circuit/System Verification

• If any of the DTCs are set 

  Refer to : Diagnostic Trouble Code (DTC) List - Vehicle

• Go to next step : If none of the DTCs are set 

• If 90% or greater 

  Refer to : Throttle Body Inspection and Cleaning

• Go to next step : If less than 90% 

Verify the scan tool parameter : Throttle Position Sensors 1 and 2 = Agree

• If not the specified state 

  Refer to : DTC P0121-P0123, P0222, P0223, P16A0-P16A2, or P2135 

• Go to next step : If the specified state 

• Boost Pressure Sensor = The value should be within the range listed in the table : Altitude Versus Barometric Pressure
• MAP Sensor = The value should be within the range listed in the table : Altitude Versus Barometric Pressure

• If not in the specified range 

• {Boost Pressure Sensor}Refer to : DTC P0236, P0237, or P0238 
• {MAP Sensor}Refer to : DTC P0106, P0107, or P0108 

• Go to next step : If in the specified range 

• B65 Intake Manifold Pressure and Air Temperature Sensor - Leaking @ O-Ring - Missing / Visible Damage
• B75C Multifunction Intake Air Sensor - Contamination of the measuring element /Cracked/Loose Clamps / Visible Damage/Water intrusion
• B111 Turbocharger Boost Sensor
  • Leaking @ O-Ring - Missing / Visible Damage
  • Restricted - Moisture/Ice
  • Skewed
• Q38 Throttle Body
  • Coking/Loose Clamps /Visible Damage
  • Restricted - Moisture/Ice
• Air Cleaner Element - Dirty / Restricted
• Catalytic Converter - Blocked / Restricted/Visible Damage
• Charge Air Cooler
  • Leaking / Incorrect connection
  • Restricted - Moisture/Ice
• Engine - Mechanical Condition - Refer to : Symptoms - Engine Mechanical
• Exhaust System - Leaking /Restricted/ Visible Damage - Refer to : Symptoms - Engine Exhaust
• Intake Air Duct - Cracked / Loose Clamps / Restricted / Visible Damage
• Intake Manifold - Cracked / Loose Clamps / Restricted / Vacuum leak/Visible Damage
• Linkage @ Turbocharger Wastegate Actuator - Binding or Sticking/Loose/Visible Damage
• Positive Crankcase Ventilation System
  • Leaking @ O-Ring - Missing / Visible Damage
  • Restricted - Moisture/Ice
  • Incorrect connection /Leaking / Restricted
• Vacuum Hoses - Kinked / Leaking / Incorrect connection / Restricted
• Vacuum leak @ Engine - Oil Level Indicator and Tube /Oil Filler Cap

• If a condition exists 

  Repair or replace the components as necessary.

• Go to next step : If no condition exists 

• MAP Sensor = 26 to 52 kPa (3.8 to 7.5 PSI) @ Idle Speed
• MAP Sensor = The value should change with accelerator pedal input.

• If not between 26 and 52 kPa (3.8 and 7.5 PSI) or does not change 

  Refer to : DTC P0106, P0107, or P0108 

• Go to next step : If between 26 and 52 kPa (3.8 and 7.5 PSI) and changes 

• If the value does not change 

  Refer to : DTC P0236, P0237, or P0238 

• Go to next step : If the value changes 

Verify the parameter changes smoothly and gradually in the recorded data as the engine speed was increased and decreased.

• If the value does not change smoothly and gradually 

  Refer to : DTC P0101 

• Go to next step : If the value changes smoothly and gradually 

Verify the DTC does not set.

• If the DTC sets 

  Repeat the procedure starting at step 1

• Go to next step : If the DTC is not set