Originally Posted by BLuHatCh501

i got my car tune from wrxtunr and it seems like my car is still running funny...and my check engine light still pops up...i had to go to auto zone a couple times to get rid of the light.....i have two codes that are the same...let me know whats going on guys do i need to get a other tuner...i just paid 100 to wrxtunr....

P0420
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