Fault code

[turbomick]

Every morning I read my car with vag com the fault code p0012 comes up no engine light just when I read the ecu then few days later the light comes up and so I read it again and it's oxygen sensor 2 is it the oxygen sensor that's throwing the light up and are these problem serious as I need to drive to car and cart afford to fix at the min the engine runs spot on no rattles or knocks ect very smooth

[palmtree]

I don't think it's the oxygen sensor looking on ross-tech

http://wiki.ross-tech.com/wiki/index.php/16396/P0012/000018

Have you got any other fault codes?

[turbomick]

Yes mate got 2 but the p0012 code is there the next next morning after I reset it but don't bring the light on dash a few days later I get p1103 then that one does bring the light on dash. Why does the second one bring the light on dash but the first one does not

[turbomick]

Any 1 lol

[bunj]

When I was having some issues with mine the ECU would throw up codes without putting the light on.

Was told sometimes they can throw out ''ghost codes'' due to other issues. I'd get your sensor done and reset and see how it goes.