Hey there,
Recently upgraded to a new downpipe which has replaced the catalytic converter it seems, as I am now pulling a P0420 Code: which is basically the secondary 02 sensor reading that the emissions aren’t being filtered correctly by the catalytic converter (which makes since since that whole piece has been replaced lol)
Still drives fine of course, so I am curious if it would be safe to simply turn off the secondary o2 sensor in Hondata and reflash the ecu.
Would this turn off the check engine emissions light, and would it be safe to do so?
Appreciate the help :)
P0420 Error Code
P0420 Error Code
2018 , Honda Civic , 1.5L , EX-T , Injen CAI , Injen SES 3" Cat-Back Exhaust , SiriMoto PnP E85 Flex Fuel Kit , Stage 3 Clutch Kit w/ Ultra Light Flywheel , Sirimoto N1 Clutch Master , MAPerformance Catted Downpipe
Re: P0420 Error Code
If this is a race vehicle then you should be able to disable this.