Catalytic Converter Needed ?
06-25-2018, 11:00 AM
#1
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Thread Starter
Catalytic Converter Needed ?
I've noticed a slight rattle over the past few months when the window is down and I'm accelerating from a stop, no big deal, I figured maybe something was wearing out slowly. Car was running fine until about a week ago and now is idling roughly(shakes a bit when at an intersection). So this morning the CEL came on and I went to my Indy who ran a quick code check. He said it might be a bad catalytic converter. It's scheduled to be brought in for service later this week anyway, and he wasn't too concerned about me driving it for a few more days. Of course as soon as I left the shop, the CEL didn't come on anymore. Question; can these cars be run without a catalytic converter ? In MN, it is not a requirement.
06-25-2018, 12:07 PM
#2
Rennlist Member
Why drive the car? Unless he is 100% sure that this is a cat.....you could have serious engine issues brewing. I would definitely be changing the oil and inspecting the oil filter during the upcoming service.
What was the code?
What was the code?
06-25-2018, 12:21 PM
#3
Pro
Thread Starter
Unfortunately I don't know what the code was. These guys do a lot of Porsche work(it's their specialty) and he felt it was ok to drive. I specifically told him I was concerned about causing damage and he said based on the codes I should be ok.
06-25-2018, 02:09 PM
#7
Rennlist Member
You could do this, but some adverse effects would be:
- More HP at the high end due to lack of back pressure
- Lower torque at the low end due to lack of back pressure
- Check engine light on because either you won't have post cat O2 sensors plugged in, or if they are in, they won't be doing anything, there is probably some work around, but you'd have to figure it out.
- The car would be louder.....might sound cool, might not.
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06-25-2018, 02:27 PM
#8
Drifting
Why not just replace it with a working one?
Some reasons to replace it:
Removing it violates federal emissions laws? https://www.epa.gov/sites/production...hsysrepair.pdf
Without it, you are spewing more stuff that is bad for people and contributes to global warming?
In order to reduce air pollution, modern automobiles are equipped with a device called a catalytic converter that reduces emissions of three harmful compounds found in car exhaust:
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
(http://explorecuriocity.org/Explore/...work-1779.aspx)
Some reasons to replace it:
Removing it violates federal emissions laws? https://www.epa.gov/sites/production...hsysrepair.pdf
Without it, you are spewing more stuff that is bad for people and contributes to global warming?
In order to reduce air pollution, modern automobiles are equipped with a device called a catalytic converter that reduces emissions of three harmful compounds found in car exhaust:
- Carbon monoxide (a poisonous gas)
- Nitrogen oxides (a cause of smog and acid rain)
- Hydrocarbons (a cause of smog)
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
(http://explorecuriocity.org/Explore/...work-1779.aspx)
06-25-2018, 03:22 PM
#9
Pro
Thread Starter
You could do this, but some adverse effects would be:
- More HP at the high end due to lack of back pressure
- Lower torque at the low end due to lack of back pressure
- Check engine light on because either you won't have post cat O2 sensors plugged in, or if they are in, they won't be doing anything, there is probably some work around, but you'd have to figure it out.
- The car would be louder.....might sound cool, might not.
06-25-2018, 03:25 PM
#10
Pro
Thread Starter
Why not just replace it with a working one?
Some reasons to replace it:
Removing it violates federal emissions laws? https://www.epa.gov/sites/production...hsysrepair.pdf
Without it, you are spewing more stuff that is bad for people and contributes to global warming?
In order to reduce air pollution, modern automobiles are equipped with a device called a catalytic converter that reduces emissions of three harmful compounds found in car exhaust:
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
(http://explorecuriocity.org/Explore/...work-1779.aspx)
Some reasons to replace it:
Removing it violates federal emissions laws? https://www.epa.gov/sites/production...hsysrepair.pdf
Without it, you are spewing more stuff that is bad for people and contributes to global warming?
In order to reduce air pollution, modern automobiles are equipped with a device called a catalytic converter that reduces emissions of three harmful compounds found in car exhaust:
- Carbon monoxide (a poisonous gas)
- Nitrogen oxides (a cause of smog and acid rain)
- Hydrocarbons (a cause of smog)
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
(http://explorecuriocity.org/Explore/...work-1779.aspx)
06-26-2018, 10:31 AM
#13
The brand is Davico. They offer 2 year and 25,000 mile warranty on the catalyst. Hopefully they last longer than that, but for the price I can buy a few of them for much less than the stock part.
06-26-2018, 06:46 PM
#14
Pro
Thread Starter
Stopped in at the local Autozone on my way home and they ran the OBD scan. Only one code; P0301. Says probable cause is vacuum leak, no mention of catalytic converter. Any thoughts on this ?
06-27-2018, 05:51 PM
#15
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That sounds closer to it being correct over the Cat Convertor. It sounds like you might need to get further into the diagnostics over code reading alone. Feel free to give me a call if you have any questions?
