Golf GLS L4-2.0L (AZG) (2001)
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V.A.G 1551 scan tool or VAG 1552 with cable VAG 1551/3
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VAG 1788/10 Engine speed adjuster
Test conditions
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Coolant temperature MIN. 80°C, See display group 04, display zone 3.
Functional check
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Connect V.A.G 1551 scan tool ((VAG1552). Start engine and select "Address word" 01 of engine control module. When doing this the engine
must be running at idling speed. See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting
Indicated on display:
Rapid data transfer
HELP
Select function XX
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Press keys 0 and 4 for the function "Introduction of basic setting" and confirm entry with Q key.
Indicated on display:
Basic setting
Input display group number XXX
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Press keys 0, 3 and 4 for "Display group number 34" and confirm entry with Q key.
Indicated on display: (1 to 4 = Display zones)
System In basic setting 34
->
1
2
3
4
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Maintain approx. 2300 RPM until display field 4 jumps from "Test OFF" to "Test ON". Catalytic converter temperature in display field 2 must be
at least 365 °C.
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Maintain engine speed at approx. 2300 RPM until display field 4 indicates the result of the aging test.
Specified value "B1-S1 OK"
If the specification is not obtained:
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Press -> key.
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Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
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Switch off ignition.
If the specifications are not attained:
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Road test vehicle to free Oxygen sensor of possible residue and repeat test.
Observe valid safety precautions for road testing.
If the specifications are again not attained:
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Replace Oxygen sensor -G39-.
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Erase DTC memory to put learned values in a neutral setting