cat - converter

[Vincenzo Basile]

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I was wondering if anybody could help me out?I'm trying to figure out why m=
y car has been smelling like the roten egg bad cat-converter smell ,it used=
 to happen only under hard excelleration but now seems to happen any time I=
 drive it.could this be a o2 sensor or running to rich ? and if it is the c=
at ,will it eventually blow its self out ,Im not too concerned with emmisio=
n because were I live they are gonna do away with it for a while
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