Thread: Restoring old catalytic converter's efficiency (cleaning method)
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Old 09-15-2017, 12:52 PM   #35 (permalink)
California98Civic
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Quote:
Originally Posted by Xist View Post
I tried to find more information on this method.

... 18 months and no code: (All Years) Catalytic Converter Citric Acid Bath P0420 - Subaru Forester Owners Forum...
I think that Subaru link is one of the dudes I was copying in my citric acid bath cleaning. FWIW, thirteen months later and no emissions related codes (no codes at all, acutally). But I did not have a code to begin with. I had reason to suspect my 1998 OEM catalytic converter might fail emissions and wanted to be prepared. I passed emissions, barely. Then I cleaned it.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



Last edited by California98Civic; 09-15-2017 at 12:53 PM.. Reason: thirteen months, not fifteen.
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