How to know if I have a decat?
#1
How to know if I have a decat?
Hi guys,
Series 1 07 RX8 owner here.
Getting error code p0420 appearing a few days after resetting the ECU.
Im assuming that my cat has already been gutted or decatted, but im not sure how to check? Are there any signs i should be looking for to to find out?
I've read that P0420 is caused by either a bad cat or a bad rear o2 sensor so im a little worried.
Thanks
Series 1 07 RX8 owner here.
Getting error code p0420 appearing a few days after resetting the ECU.
Im assuming that my cat has already been gutted or decatted, but im not sure how to check? Are there any signs i should be looking for to to find out?
I've read that P0420 is caused by either a bad cat or a bad rear o2 sensor so im a little worried.
Thanks
#2
The exhaust smell is a giveaway if you have a cat or not.
With a cat, you car will smell like any other on the road, meaning a light smell with nothing particular to it.
If you don't have a cat, the smell will be very strong, almost eye watering if you stick your face in there. Motorcycles, go karts and lawn mowers have similar smells because they also don't have cats.
I would also say catless increase noise levels, but that can vary depending if you have the stock muffler or a high flow catback.
With a cat, you car will smell like any other on the road, meaning a light smell with nothing particular to it.
If you don't have a cat, the smell will be very strong, almost eye watering if you stick your face in there. Motorcycles, go karts and lawn mowers have similar smells because they also don't have cats.
I would also say catless increase noise levels, but that can vary depending if you have the stock muffler or a high flow catback.
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