What is the code P1148?
OBD II fault code P1148 is a manufacturer specific code that is defined by car makers Nissan and Infinity as “Closed Loop Control Function Bank 1”, and on these applications, code P1148 is set when the PCM (Powertrain Control Module) detects a condition relating to an air/fuel ratio sensor that prevents it (the PCM) …
What happens when the oxygen sensor goes bad on a Nissan Pathfinder?
Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Nissan Pathfinder ‘s engine to run less efficiently. Your Pathfinder can exhibit symptoms when the Oxygen sensor has gone bad.
Why does the Check Engine light come on on my Pathfinder?
Oxygen sensors can change the way that your Pathfinder’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
Can a bad oxygen sensor cause a check engine light to come on?
The trouble codes associated with the OBDII scan will reveal which sensor is at fault and why it is bad (at least what the computer thinks is wrong). It is very rare for there to be a problem with an oxygen sensor, and not have the check engine light come on. Here are the most common symptoms of a bad oxygen sensor in your Pathfinder:
What does it mean when your oxygen sensor says P0420?
Oxygen sensors are only a part of a greater system, meaning if the p0420 code (or p0141, or p0135) is thrown, that doesn’t necessarily indicate the oxygen sensors need replacement. Rather, there could be something else in that system does that’s causing the oxygen sensors to appear faulty.
Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Nissan Pathfinder ‘s engine to run less efficiently. Your Pathfinder can exhibit symptoms when the Oxygen sensor has gone bad.
The trouble codes associated with the OBDII scan will reveal which sensor is at fault and why it is bad (at least what the computer thinks is wrong). It is very rare for there to be a problem with an oxygen sensor, and not have the check engine light come on. Here are the most common symptoms of a bad oxygen sensor in your Pathfinder:
Oxygen sensors can change the way that your Pathfinder’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
Oxygen sensors are only a part of a greater system, meaning if the p0420 code (or p0141, or p0135) is thrown, that doesn’t necessarily indicate the oxygen sensors need replacement. Rather, there could be something else in that system does that’s causing the oxygen sensors to appear faulty.