Passat Wagon L4-2.0L Turbo (BPY) (2008)
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Check fuel lines for restrictions (kinks) or clogging.
If no malfunction can be found:
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Disconnect the supply hose - 1 - from the fuel filter input.
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Connect a High pressure fuel gauge between the fuel filter and fuel supply line.
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Repeat the delivery rate test.
If the minimum delivery rate is obtained:
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Replace the fuel filter.
If the minimum delivery rate is not obtained:
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Remove the fuel pump and check the strainer filter for dirt.
If no malfunctions have been found:
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Replace the fuel pump.
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Assembly is performed in the reverse of the removal.
Final Procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 03 - Read DTC Memory.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 04 - Erase DTC Memory.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.
End of diagnosis.