Does the VAG tool tell you exactly what is malfunction in the vehicle or just possibilities ?

i.e. Oxygen sensor or vacuum leak or MAF failure ?


I need to know exactly whats wrong[:@]

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The Vag may or may not tell you exactly what is wrong. Sometimes if the problem is broad, there may not be one culprit. ie: sytem lean. You have a CEL right?

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4