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Catalyst converter question

2K views 3 replies 3 participants last post by  Herbstang 
#1 ·
when someones catalyst converter is bad does cause any harm to the car?
 
#2 ·
It's a catalytic converter and yes i can lead to problems with the engine. It is making the engine run differently than it normally should and you will see a reduction in both performance and gas mileage.
 
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