I am using this vehical since 2010 &.

Tiny
ABHIJETKULKARNI
  • 2000 NISSAN SENTRA
  • 105,000 MILES

Hi,
I am using this vehical since 2010 & since last year I am getting MIL light on once I get the light reset it works fine for 1K ~ 3K miles & then again come up, It shows only PO420 code.

What should be the line of action should I replace the o2 sensor or Cat Conv.

Abhijit Kulkarni

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Thursday, February 28th, 2013 AT 3:12 PM

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Tiny
KHLOW2008
  • EXPERT
  • 41,940 POSTS

If you want to be sure of which to replace, use the scan tool to monitor the O2 sensor. You might need to replace both.

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Thursday, February 28th, 2013 AT 3:44 PM

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