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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 321 (Engine Controls (Except Diesel & Hybrid) - DTC P0210 - P05C0) >> DTC P0299: Turbocharger/Supercharger A UNDERBOOST Condition

DTC P0299: Turbocharger/Supercharger A UNDERBOOST Condition

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DTC P0299: TURBOCHARGER/SUPERCHARGER A UNDERBOOST CONDITION

Description:  This DTC sets when the actual throttle intake pressure is less than the desired throttle intake pressure by 27.6 kPa (4 psi) or more for 5 seconds. A minimum throttle intake pressure (TIP) PID reading during engine operation indicates an underboost condition.
Possible Causes: 
  • Damaged turbocharger (TC) wastegate regulating valve solenoid
  • TC wastegate regulating solenoid valve stuck
  • Wastegate stuck open
  • Wastegate control hose open or plugged
  • Air leak between turbocharger and throttle
Diagnostic Aids:  Check tubing for obstructions, cracks and incorrect fitting connections.
Check the turbocharger wastegate regulating valve solenoid for correct operation.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST HN .