Beetle L4-1781cc 1.8L Turbo (APH) (1999)
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Check the air mass drawn in in display zone 4.
Display Group 2
If the specification is attained:
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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.
Evaluating display group 2, display zone 4 - Air mass drawn in
Testing power supply to Mass Air Flow (MAF) sensor