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When Upgrading Catalytic Converters are Replacement Sensors Required as Well?  

Question:

Should I replace my downstream sensors if I’m replacing all 3 of my converters on my Acura MDX 04. Even though I don’t think they are bad because I have no check engine light

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Expert Reply:

When replacing the converters on your 2004 Acura MDX, you do not need to change your sensors. As long as you don't get the check engine light with the sensor code, your current sensors will work fine. We don't have a custom fit for your vehicle, so you will need to get a universal option. I've linked the page to all you options.

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Jason S

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