Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 92 Honda Civic VX Failed Smog High HC at 25pmh

California98Civic · 12-11-2017, 10:22 PM

I would not throw parts at the problem, if you can avoid it. But yes, you could replace the CAT. But if you have a fueling problsm or an oil burning problem then your replacement CAT coiuld get fouled sooner than otherwise. And the replacements are cheaper when they use less of the precious metals that form the catalyst. You could also go Balto's route of scamming the system. Certainly tempting, but I support the policy goal of the smog testing (which has been successful), even though I do not like CARB's administration of the policy.

I did a detailed write-up on cleaning... Here it is, with citations and videos:
http://ecomodder.com/forum/showthrea...tml#post542998

Good luck!

12-11-2017, 10:22 PM	#12 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,172 Times in 1,469 Posts	I would not throw parts at the problem, if you can avoid it. But yes, you could replace the CAT. But if you have a fueling problsm or an oil burning problem then your replacement CAT coiuld get fouled sooner than otherwise. And the replacements are cheaper when they use less of the precious metals that form the catalyst. You could also go Balto's route of scamming the system. Certainly tempting, but I support the policy goal of the smog testing (which has been successful), even though I do not like CARB's administration of the policy. I did a detailed write-up on cleaning... Here it is, with citations and videos: http://ecomodder.com/forum/showthrea...tml#post542998 Good luck! __________________ 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.