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Old 11-14-2012, 08:36 PM   #1 (permalink)
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Rusty crusty trusty - '94 Honda Civic Cx
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Do I need a cat?

My cat has Been hollowed out not by me. I have no smog check here do I need the cat to warm the laf or 5 wire 02 on my vx? the 02 is shot also so please help.

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Old 11-14-2012, 08:52 PM   #2 (permalink)
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It will run fine without it, but for the sake of anyone who may have to breathe the fumes, just get a replacement.
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Old 11-15-2012, 12:14 AM   #3 (permalink)
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Get a new oxygen sensor and don't worry about the converter.

Last time I was in ohio they didnt seem to have much of a smog problem.
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Old 11-15-2012, 07:01 AM   #4 (permalink)
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Poor cat.
I hope at least your dog is not hollowed out...
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Old 11-15-2012, 07:46 AM   #5 (permalink)
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2 x wrecked vx - '92 Honda Civic Vx
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Like the others have said . Hollowed cat is ok. Your vx will enter leanburn just fine but you will notice is slight exhaust smell. Don't need egr on a vx either but that is another story.
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Old 11-15-2012, 09:55 AM   #6 (permalink)
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PaleCivic (retired) - '96 Honda Civic DX Sedan
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It's not terribly expensive or difficult to replace the mani-cat. I did mine last year for under $200 and a saturday morning of work. I see it as part of being a responsible member of society.
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Old 11-15-2012, 01:35 PM   #7 (permalink)
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$200 will buy a lot of gas.
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Old 11-15-2012, 01:47 PM   #8 (permalink)
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$200 will be spent on the first doctor's visit for the person who gets asthma or any of the other respratory problems that NOx emissions can cause.
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Old 11-15-2012, 05:34 PM   #9 (permalink)
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Just checked summitracing.com, less than $70 for a universal catt.
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Old 11-15-2012, 05:45 PM   #10 (permalink)
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On these Hondas, it's a single piece exhaust manifold and cat. Why, I don't know, but it is. That's why I said I replaced my mani-cat. May as well, too, since the OEM manifold is prone to cracking. That's why I replaced mine, not for the cat.

Correction: Looks like the 92-95 Civics use a 2 piece setup. You still have to get a correct-spec unit that bolts up to the manifold, though. Big flat flange on the top, slanted flange at the bottom.

$461 for oem, but I'm finding aftermarket units for about 200. You have to sift through a lot of "universal" parts to find the right one.
http://www.hondaautomotiveparts.com/...NIFOLD+%281%29

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Last edited by PaleMelanesian; 11-15-2012 at 05:56 PM..
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