I AM USING THIS VEHICAL SINCE 2010 AMP SINCE ...

  • 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

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,994 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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