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Can I take my o2 sensor out to see if my cat is clogged?



My initial thought would be no. However, perhaps unbolting the downpipe that leads to the cat would help you troubleshoot. Hopefully one of the gurus will chime in.
 
Yeah you can pull out your upstream o2 and drive around and see if it gets better and if it does then your cat is probably clogged. What symptoms are you having?
 
Bogging under slow acceleration especially at around 50 mph. It's showing a service light for a p420 code as well. Just thought I would rule everything out before I buy the cat
 
dsmuts said:
Yeah you can pull out your upstream o2 and drive around and see if it gets better and if it does then your cat is probably clogged. What symptoms are you having?
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Won't unplugging the upstream O2 sensor cause the car to run like crap either way, just due to how the computer uses the data?
 


Here's an idea from the "I live in Florida so I don't care if it poisons the environment" handbook: Remove the Cat and U-Bend either way.
 
Yes you can. Don't drive it hard though, because it won't know what the fueling is and therefore you don't want to beat on it.
 
BillBoost37 said:
Yes you can. Don't drive it hard though, because it won't know what the fueling is and therefore you don't want to beat on it.
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Tell that to uh, all my cars!

Running with no o2 will have zero ill effects, so knock yourself out and dont be afraid to rag on it.
 
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