GTI L4-1.8L Turbo (AWP) (2003)
Wastegate Actuator: Testing and Inspection
Wastegate Bypass Regulator Valve Vacuum Diaphragm, Checking
Vacuum Diaphragm For Wastegate Bypass Regulator Valve, Checking
Special tools and equipment
-
VAG 1551 scan tool (or VAG 1552 mobile scan tool) with VAG 155113 cable
Test requirement
-
Engine oil temperature at least 60 °C.
Test sequence
-
Disconnect connector -2- at wastegate bypass regulator valve -N75-.
-
Bring engine to maximum RPM by depressing accelerator pedal suddenly. Operating rod -2- for wastegate bypass regulator valve must move.
If operating rod does not move:
-
Check lever for wastegate bypass regulator valve -1 - for ease of movement. If rusted solid, replace turbocharger.
If operating rod does not move despite freely moving lever:
-
Replace turbocharger See item no.6 in "Turbocharger With Attachments, Removing and Installing". See: Service and Repair
-
Check DTC memory and erase. Refer to "On Board Diagnostic". See: Computers and Control Systems/Testing and Inspection