My 2001 A4 1.8 Audi fail the emission test due to my check engine light is on. The Jiffylube guy stated that it's a "p0011" error. The voltage signal from camshaft "a" position sensor in bank #1 indicates inadequate performance.
Does any one know how to deal with this kind of check light problem? Can I buy the part and change it on my own. Or is it something I need the mechanic to take the car a part and change it for me? Thanks for any input. Hunter