1998 Toyota Corolla obd-2 code p0420

1998 TOYOTA COROLLA
135,000 MILES • 4 CYL • FWD • AUTOMATIC
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STEVE1675
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catalyst below threshold bank 1 is the only fix for this to replace the converter and if so how do you reset the code after replacement of the converter
Dec 8, 2007 at 12:19 PM
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RASMATAZ
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Welcome to 2carpros

Try this pull the EFI fuse for 10secs or bring it to autozone to clear it-free services-or get a scantool.
Dec 8, 2007 at 2:10 PM
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STRAILER
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Yep, you will need a scan tool to clear these codes here is a guide to help you do so.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over this guide and get back to us.
Jul 20, 2024 at 6:05 PM
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