Catalytic Converter for Elantra
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Joined: Apr 2008
Posts: 71
From: Upstate, NY
Catalytic Converter for Elantra
I have a '97 Elantra which is throwing a P0422 code.. I'm thinking I will need
to replace the catalytic converter soon. It has 212kmi on it.
The local chain auto parts store has 2 available, a cheap universal one for about $100, and a custom fit for $200. Well, you know what my question is.. can I get away with the cheaper one, or is there any reason to get the expensive custom fit one (other than the 5 year versus 90 day warranty). I haven't had to replace a converter before, so I'm looking for a little advice.
Another question.. this is totally wacky, but it's a common practice to clean woodstove catalytic converters (same clay matrix as automotive ones) by boiling them in a vinegar solution. Would this be feasible to try on an automotive converter, or would I kill the downstream O2 sensor?
thanks!
bernd
to replace the catalytic converter soon. It has 212kmi on it.
The local chain auto parts store has 2 available, a cheap universal one for about $100, and a custom fit for $200. Well, you know what my question is.. can I get away with the cheaper one, or is there any reason to get the expensive custom fit one (other than the 5 year versus 90 day warranty). I haven't had to replace a converter before, so I'm looking for a little advice.
Another question.. this is totally wacky, but it's a common practice to clean woodstove catalytic converters (same clay matrix as automotive ones) by boiling them in a vinegar solution. Would this be feasible to try on an automotive converter, or would I kill the downstream O2 sensor?
thanks!
bernd
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Joined: Sep 2008
Posts: 1,254
It's possible your cat is bad, but it's more likely you have a bad O2 sensor, or an exhaust leak.
But in case you really want a new cat, then shop eBay. I don't think a universal one will work without substantial modifications, as they have a flange and no room to cut and fit.
See here:
http://cgi.ebay.com/ebaymotors/98-HY...Q5fAccessories
Forget about cleaning it, as they usually corrode away when they get worn.
But in case you really want a new cat, then shop eBay. I don't think a universal one will work without substantial modifications, as they have a flange and no room to cut and fit.
See here:
http://cgi.ebay.com/ebaymotors/98-HY...Q5fAccessories
Forget about cleaning it, as they usually corrode away when they get worn.
Thread Starter
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Member
Joined: Apr 2008
Posts: 71
From: Upstate, NY
I researched the code a bit on other forums, and it seemed to indicate that the cat was bad. However, if you think the (downstream??) O2 sensor is a better bet, I would try that first as its less expensive and easier to replace.
I had a bad wire over the winter late one night and had to limp it home about 30 miles or so.. I figured out what it was and replaced the wires the next day, but the P0422 code showed up... maybe 500 to 1000 miles after that.. I can't remember exactly. I was wondering if I may have fouled up the cat?
I had a bad wire over the winter late one night and had to limp it home about 30 miles or so.. I figured out what it was and replaced the wires the next day, but the P0422 code showed up... maybe 500 to 1000 miles after that.. I can't remember exactly. I was wondering if I may have fouled up the cat?
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Joined: Sep 2008
Posts: 1,254
Why don't you just reset the codes and see if it comes back? Pull off the negative battery cable for about 15 minutes and that will reset the system.
Cats don't go bad unless you are burning something bad, like a coolant leak into the combustion, leaded fuel, or too much injector cleaner.
Cats don't go bad unless you are burning something bad, like a coolant leak into the combustion, leaded fuel, or too much injector cleaner.
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