P0420 nissan murano 2009

OBD Code P is an extremely common indicator of an issue with the operating efficiency of your Nissan Murano's catalytic converter, so it's letting you know by flipping on the check engine light hopefully before you fail an emissions test.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. It has been running great otherwise, despite it has K miles on it The scan tool only detects that code.

P0420 nissan murano 2009

.

Same process as replacing the O2 sensor.

.

This page is meant to help you troubleshoot the Nissan Murano P trouble code. A failing oxygen sensor or bad catalytic converter are the most common causes of P Catalyst system efficiency is the percentage of these chemicals removed from the exhaust system. Oxygen sensors measure these pollutants. When the readings from the upstream and downstream oxygen sensors show similar readings not enough pollutants expelled from the exhaust , your vehicle will throw the service engine soon light P This can happen for three reasons:. You can ignore this section if your Murano has an inline engine or if the exhaust manifolds merge into one pipe before the catalytic converter.

P0420 nissan murano 2009

Log in. Sign up. Home Forums General Problems. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I am new to this forum so please forgive me if I don't do something right. Anyway, my oldest daughter brought her Murano home with the check engine light on. I checked the codes and it is a P I have read through other posts on this forum and there seems to be 3 possible causes, and 3 fixes. FIXES: Replace the converter, replace the sensor s , fool the O2 sensor by either using a spark plug fowler or using some type of home-made electronic assembly with a resistor.

Paramountplus login

I was looking at partsgeek. Doesn't need anything fancy, any of the generic reader out there should let you reset the CEL and erase the code. You may experience a very slight reduction in engine power from reduced exhaust flow, as well. No luck? We like this selection of O2 sensors for catalytic converters. So third one down the list is the sensor? It's the third sensor down listed on the website I'm guessing? For a better experience, please enable JavaScript in your browser before proceeding. Insert Quotes Quotes Post Reply. Even though I'm not sure if I'd tackle the job myself at this point. OBD Code P is an extremely common indicator of an issue with the operating efficiency of your Nissan Murano's catalytic converter, so it's letting you know by flipping on the check engine light hopefully before you fail an emissions test. That is it.

.

Jack up the front end and follow the bending flex pipe. I would try the anti-fouler first before buying a new O2 sensor. Any ideas? I have done it. This is an older thread, you may not receive a response, and could be reviving an old thread. Carefully unscrew that making sure not to stress the wiring connection. The car does not appear to burn any additional fuel and no other issues have been noticed since the light went on. Check youtube. The reason you can make this determination is that a functional catalytic converter will lower the temperature of the exhaust by a substantial degree in the course of normal operation. Did a total of 70 miles since I filled up last night and put the two bottles of Techron in. Same process as replacing the O2 sensor. However, last year, the dosing stopped working. You can test the sensor before doing that.