What is OBD code for Nissan Altima O2 sensor?
Here’s the perfect opportunity to break out that new, easy-to-use, consumer-grade OBD II (On-Board Diagnostics II) generic code reader. That’s what we did on our sacrificial lamb, a Nissan Altima. After plugging in the universal connector under the dash, we retrieved a code P0136 “O2 Sensor Circuit Malfunction (Sensor 2).”
Where is the O2 sensor on a Nissan Maxima?
Here is an example of sensor locations on a 2002 Nissan Maxima that has a transverse mounted 3.5L V6 engine (cylinder #1 in this vehicle is on the right side or rear bank): There is only one bank on inline engines, so most of these vehicles will only have a single upstream O2 sensor and a single downstream O2 sensor.
Which is the oxygen sensor after the catalytic converter?
Vehicles equipped with OBD-II will have a sensor (or more) after the catalytic converter—these are known as downstream or rear oxygen sensors. OBD-II codes will refer to a sensor by a bank and sensor number. Sensor 1 is a term used for an upstream oxygen sensor; sensor 2 is a term used for a downstream oxygen sensor.
What is the OBD-II code for oxygen sensor?
OBD-II codes will refer to a sensor by a bank and sensor number. Sensor 1 is a term used for an upstream oxygen sensor; sensor 2 is a term used for a downstream oxygen sensor. Understanding bank location is actually quite simple as long as you know where cylinder 1 is.
What happens when the O2 sensor goes bad on a Nissan Altima?
When an O2 (oxygen) sensor go bad, it’ll cause your Nissan Altima ‘s engine to run less efficiently. Your Altima can exhibit symptoms when the Oxygen sensor has gone bad. Or, it may exhibit none at all. Often enough, the only sign of the problem at all is the service engine soon light being on.
What causes a Nissan Altima to fail an emissions test?
You’ll go to get an emissions check done, and your Altima fails the test. Without a check engine light, it can be tough to lock down exactly what would cause the vehicle to fail, but oxygen sensors are one of the more common causes. There may or may not be any noticeable symptoms when your Nissan Altima’s oxygen sensor (s) go bad.
Why does the Check Engine light come on on my Altima?
Oxygen sensors can change the way that your Altima’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.
Where is the oxygen sensor in the engine?
An Oxygen sensor that is between the catalytic converter and the engine is known as an “upstream” sensor. Oxygen sensors after the catalytic converter are “downstream sensors”. As a rule, the upstream sensor is more important for engine timing and air/fuel ratios.