Golf L4-1.8L Turbo (AWD) (2000)
If the specification is obtained:
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Press C key.
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Press keys 0, 3 and 6 for "Display group number 36" and confirm entry with Q key.
Indicated on display: (1-4 = Display zones)
Read measured value block 36
->
1
2
3
4
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Check Oxygen sensor voltage after catalyst in display zone 1:
Specification: 0.500 - 0.800 V (can fluctuate slightly)
If the display in display zone 1 remains constant:
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Continue check according to following table.
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Check diagnostic result in display zone 2:
Specification: B1-P2 OK
NOTE: It can take a few minutes until display jumps from "Test ON" to "B1-P2 OK".
If "B1-P2 nOK" is displayed::
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Press -> key.
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Interrogate fault memory. Refer to "Displaying, Reading and Erasing Trouble Codes" See: Testing and Inspection
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Carry out a test drive to remove possible residue on Oxygen sensor and repeat check.
Observe the valid safety precautions when carrying out a road test. See: Fuel Delivery and Air Induction/Fuel Injector/Service Precautions/Technician
Safety Information
If the specifications are again not attained:
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Replace Oxygen sensor after catalyst (G130).
Checking basic voltage