Thread: P0420 ?
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Old 05-02-2013, 09:05 AM   #10
jayman4312
Scooby Specialist
 
Member#: 228784
Join Date: Nov 2009
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
2004 wrx
black, stage 2+

Default

posting from your phone is no excuse to keep not giving us all the details.

you have an aftermarket exhaust with no tune, that is what is giving you that code. Get the car tuned if you don't want the code.
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