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Old 09-26-2015, 07:32 PM   #1
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A little info

Hope I don't get ripped but here it goes I got the p420 yesterday bank 1 since I removed my rear cats is that the code for the rear 02 sensors. Couldn't find a good enough answer with the search. Don't have a tuner yet so when I do get it I can just turn them off with the tuner or does it have to be added to the tune when I get one. With the cel on will I have any issues or not thinking about riding it out till I have a tuner to turn them off thanks guys for input.

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Old 09-26-2015, 09:01 PM   #2
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P420 is nothing. It just means that your car is "Jonesing" for some weed.

P0420, on the other hand, is Catalyst system efficiency below threshold (Bank 1).and that is indeed caused by the cat delete. It will cause no harm other than the annoyance of having the CEL lit up.
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Old 09-26-2015, 09:29 PM   #3
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Good but just went to the store and the cel turned itself off lol crazy car

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