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tigerman57 8/29/2012

2002 Volkswagen Passat GLX 6 Cyl 2.80L

Preventive Maintenance

check engine light on

i have recently got 2 codes popping up on my car...the car has 111347 miles ,i recently changed the secondary air injection pummp,egr control soilnoids,and breather tube..and now i get the 2 codes which are 491 and 492.i would like to know exactly what they mean and what i need to do to repair problem

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