Typically, the code will be triggered by the upstream oxygen sensor (before the converter). The P0420 code in a Nissan Pathfinder will often be thrown one of your oxygen sensors are not functioning properly. #Pathfinder bank softwareWhen the numbers match, the software in your Pathfinder believes that the catalytic converter is no longer doing its job. These readings shouldn’t match, since the catalytic converter is supposed to be scrubbing the exhaust. When the readings from the upstream and downstream oxygen sensors show similar readings, the vehicle will throw the service engine soon light (P0420). Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter. Your Pathfinder has at least two oxygen sensors, one before and after the catalytic converter. The code technically stands for:Ĭatalyst System Efficiency Below Threshold Nissan Pathfinder P0420 OBDII Code Defined It doesn’t matter which model you have, this OBDII code has the same meaning for all of them (1996+) This code number references a number that is given to you when you plug your Nissan Pathfinder into a OBDII scanner. Jumping straight to replacing the O2 sensor can cost you time and money. WIth the Pathfinder, OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. It covers Nissan Pathfinder P0420 meaning, symptoms, causes, and possible solutions. This page is meant to help you troubleshoot the Nissan Pathfinder P0420 trouble code.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |