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Code P0420

Tiny
CKMARTI61
  • MEMBER
  • 2004 CHEVROLET TRACKER
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 214,000 MILES
I took my son's car to O'Riellys for a diagnostic because the check engine came on and one of the codes that came up was P0420. Is that the catalytic converter or the O2 sensor? Thanks
Saturday, March 7th, 2020 AT 1:26 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

This is a code for the catalytic converter itself. The internals are worn out and it needs to be replaced.

Roy
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Saturday, March 7th, 2020 AT 1:35 PM
Tiny
CKMARTI61
  • MEMBER
  • 2 POSTS
Thanks! I'll let my son know.
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Saturday, March 7th, 2020 AT 1:44 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Saturday, March 7th, 2020 AT 1:46 PM

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