Replacing California Catalytic converter with non-CA catalytic converter - Mazda3 Forums : The #1 Mazda 3 Forum
 
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post #1 of 3 (permalink) Old 12-25-2018, 08:59 PM Thread Starter
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Replacing California Catalytic converter with non-CA catalytic converter

I have a 2007 mazda 3 hatchback w/ 211k miles and still going. I've been losing lots of oil and since i've changed the PCV valve, i've slowed that process down to about 1 qt every 2000 miles. Anyhow, the oil found its way into the exhaust and i think that killed the catalytic converter. So i'm looking to replace the catalytic converter. Here is my question. The car is a CA car but i've since moved to Texas and I'm wondering if i can replaced the non-CA catalytic converter because they are a bit cheaper? If I replace it w/non-CA cat, will it cause a CEL to come on? I just need the car to last me a bit longer and I don't want to put any more money into it if I can help it. Thanks in advance. Also, it this was already answered somewhere, then I suck at searching, but I did try.
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post #2 of 3 (permalink) Old 01-02-2019, 12:35 PM
mrb
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Quote:
Originally Posted by greasemonkey View Post
I have a 2007 mazda 3 hatchback w/ 211k miles and still going. I've been losing lots of oil and since i've changed the PCV valve, i've slowed that process down to about 1 qt every 2000 miles. Anyhow, the oil found its way into the exhaust and i think that killed the catalytic converter. So i'm looking to replace the catalytic converter. Here is my question. The car is a CA car but i've since moved to Texas and I'm wondering if i can replaced the non-CA catalytic converter because they are a bit cheaper? If I replace it w/non-CA cat, will it cause a CEL to come on? I just need the car to last me a bit longer and I don't want to put any more money into it if I can help it. Thanks in advance. Also, it this was already answered somewhere, then I suck at searching, but I did try.
Hopefully it isn't the head gasket
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post #3 of 3 (permalink) Old 01-04-2019, 10:07 AM
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Quote:
Originally Posted by greasemonkey View Post
I have a 2007 mazda 3 hatchback w/ 211k miles and still going. I've been losing lots of oil and since i've changed the PCV valve, i've slowed that process down to about 1 qt every 2000 miles. Anyhow, the oil found its way into the exhaust and i think that killed the catalytic converter. So i'm looking to replace the catalytic converter. Here is my question. The car is a CA car but i've since moved to Texas and I'm wondering if i can replaced the non-CA catalytic converter because they are a bit cheaper? If I replace it w/non-CA cat, will it cause a CEL to come on? I just need the car to last me a bit longer and I don't want to put any more money into it if I can help it. Thanks in advance. Also, it this was already answered somewhere, then I suck at searching, but I did try.
I would say you should keep with the California Cat as i bet the engine has a California Tune on it and a different non California Cat might throw that off in the #3 downstream O2 Sensor which i believe is unique to the California cars for PZEV


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