Turbocharger Pressure Control Test

INTAKE CHARGE PRESSURE CONTROL SYSTEM CHECK




1. After the diagnostic trouble code of MFI system is read turn off the ignition switch.

2. Disconnect the hose (black) from the turbocharger wastegate actuator control boost nipple at the air outlet fitting and plug this nipple.

3. Connect a hand vacuum pump to the hose (black).




4. Use the vacuum pump to apply negative pressure and check the negative pressure condition while the engine is stopped and while it is idling.