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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  • 1 POST
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 4:19 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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 6:10 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,583 POSTS
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 11:05 AM
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