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  1. Bad Catalytic converter..What say you?

    Range Rover Sport / L320
    Noticed the last few times I did a hard acceleration I'm smelling a strong suffer odor. Could this be a sign that the CAT is dying? I have been using a product called Lucas upper cylinder jubricant with injector cleaner about every 2 to 3 thousand miles. Could this be the cause of a bad cat? I...
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