2000 Nissan Sentra code PO420 and PO430

Tiny
NNILOO
  • MEMBER
  • 2000 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 89,700 MILES
My engine light is on. I asked AutoZone and the did Zero it but it is back on again. They gave me these 2 codes after they diagnozed it. Would you please help me to fix it. Thanks. Niloo
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Saturday, February 28th, 2009 AT 8:40 AM

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Tiny
F4I_GUY
  • EXPERT
P0420 is for bank 1. P0430 is for bank 2.

This is an excellent link explaining the code and how to diagnose it properly.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
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Saturday, March 7th, 2009 AT 8:06 PM

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