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Q: catalytic converter damaged by ignition coils? on 2002 Volkswagen GTI

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The check engine light came on this week. I took it to autozone to find out why. The codes point to engine efficiency. Means either vacuum hoses or the CC.

My mechanic thinks the cc is damaged from the 2 ignition coils that failed about 2 years ago.

Is it possible that a failed coil can damage the CC?
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Thanks for the confirmation. Is it likely that it would take 18-24 months before it showed up?

Is there a way I can tell between a vacuum hose and a damaged CC? The price differences for repair would be big, so I am hoping I can tell if the mechanic is making the right call.
always clear the code and drive to see if it reappears before replacing cat very expensive and coil failure on vw s can cause cat damage but dont just replace it clear first
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