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. This code basically means that the engine's O2 sensors associated with your Nissan Murano's Catalytic Converter have informed the electronic control unit ECU that the catalytic converter isn't doing its job well enough or perhaps at all, p0420 nissan murano 2009. If the catalytic converter isn't working like it should, your engine will let off more pollution than is legal — a P code almost assuredly means that you'll fail an annual emissions test, so you don't have much 14 day weather orlando but to get this p0420 nissan murano 2009 if you want to drive legally. Note: If your vehicle has a dual exhaust system, this code will indicate that the issue is with the first engine bank, i.

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. The code originally came up earlier this week and went away a day later.

P0420 nissan murano 2009

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At this point, the front sensor should be registering varying levels of O2 in the exhaust while the back sensor should be reading fairly stable levels, because the converter "normalizes" the exhaust as it flows through the catalyst, p0420 nissan murano 2009. The light never went away but I did feel smoother performance right after throwing it in there

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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:.

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.

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The code originally came up earlier this week and went away a day later. I could also try putting in the Techron concentrate, even though I was going to try some seafoam originally. I read a few post that replacing it isn't all that easy without a proper lift. I need coffee 41 Replies. It looks like there is room for the anti-fouler should you try that fix later on. Explore Our Forums. Its not the firewall or radiator side pre CAT. The spark plug non fouler is something I'd have to look into. It's worth mentioning there's a few states that abide by CARB an emissions regulation — this won't get you past an emissions test in those states, so tread carefully. Even though I'm not sure if I'd tackle the job myself at this point. It has been running great otherwise, despite it has K miles on it Its small and hard to reach. Remove the wheel and the heat shield-2 bolts- and you can see it right there pointing down vertical to the pipe. Not sure, you need to disconnect the bottom pipe to reach the O2 sensor. I read some posts where people say it's a pain because you have to remove the wiper cowl to get to it by the firewall

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Yeah i know unscrewing an O2 can be a BIG pain You need to make one a through fitting to accommodate the length of the sensor. I am still trying to see which sensor would be the one needed Check youtube. This is an older thread, you may not receive a response, and could be reviving an old thread. Any suggestions otherwise? Please consider creating a new thread. This code basically means that the engine's O2 sensors associated with your Nissan Murano's Catalytic Converter have informed the electronic control unit ECU that the catalytic converter isn't doing its job well enough or perhaps at all. This code isn't particularly dangerous to drive with for a little while — we'd just strongly recommend that you reset the check engine light with an OBD scanner so if another mor urgent issue crops up, you'll know about it. As always, we strive for accuracy, but do your own research — we're not responsible for how you use the information here. Or is there only one up close to the firewall side? For a better experience, please enable JavaScript in your browser before proceeding.