2CarPros - Car Questions & Answers

2000 Nissan Sentra Repair Question


Topics covered: Sensor, Tool.
Mileage: 105,000 miles.

Asked on February 28, 2013

Nissan Sentra Sensor Problem

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
Avatar Asked by abhijetkulkarni

Answer

Replied on February 28, 2013

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.

Tiny Answered by KHLow2008 (expert)
40,332 answers provided