DTC P0234: Turbocharger/Supercharger A OVERBOOST Condition

P0234 - TURBOCHARGER/SUPERCHARGER A OVERBOOST CONDITION

Description:	The powertrain control module (PCM) continuously monitors the turbocharger system for an overboost condition. The PCM checks for a maximum throttle intake pressure (TIP) PID reading during engine operation, which indicates an overboost condition. This DTC sets when the PCM detects that the actual throttle intake pressure is greater than the desired throttle intake pressure by 27.6 kPa (4 psi) or more for 5 seconds.
Possible Causes:	Damaged turbocharger (TC) wastegate regulating valve solenoid Damaged wastegate adjusting rod TC wastegate regulating solenoid valve stuck Wastegate stuck closed Wastegate control hose open or plugged Incorrect wastegate adjustment
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 .