GTI V6-2.8L (AFP) (1999)
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Fuse no. 43 must be OK
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The temperature of the coolant must be at least 85 °C See display group 04, field 3
Functional test
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Connect VAG 1551 (or VAG 1552) scan tool.
Leave engine running and select engine control module using "address word" 01.
Indicated on display:
Rapid Data Transfer
HELP
Select Function XX
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Press keys "0" and "8" for function "Read Measuring Value Block" and acknowledge entry by pressing "Q."
Indicated on display:
Read Measuring Value Block
Enter Display Group No. XXX
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Press keys "0", "7" and "0" for display group 70 and acknowledge entry by pressing "Q."
Indicated on display (1-4 = display fields).
Read Measuring Value Block 70
->
1
2
3
4
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Press "4" for function "basic setting." Diagnosis of evaporative emissions system is started.
NOTE: No load may be produced during this diagnosis. Otherwise the diagnosis will be stopped and can only be started again after applying the
accelerator.
Indicated on display (1-4 = display fields).
System in basic setting 70
->
1
2
3
4
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Let engine idle until specification "TEV OK" is displayed in field 4.
If the diagnosis is started by the engine control module, the display in field 4 will jump from "Test OFF" to "Test ON".
NOTE: If the display switches from "Test ON" to "Test OFF" during the test, the test can be repeated by a brief application of the accelerator.