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Old 08-04-2023, 12:19 AM
andrewwynn's Avatar
andrewwynn andrewwynn is offline
Join Date: Jun 2015
Location: Racine, WI
Posts: 11,119
andrewwynn will become famous soon enough
Monitor your real-time voltage at post cat and pre cat. The post car should not track up and down with pre cat. If they do that means the cat is worn out.

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2011 E70 N55 (me)
2012 E70 N63 (wife)
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