The 2002 Pathfinder oxygen sensors are critical part of the engine management system. You can find the oxygen sensors in the exhaust system.
the part no. are 64,2387,79856
And they are expensive to replace... (i replaced one @ $400)
There are two oxygen sensors on a Nissan Sentra. This vehicle is an ultra-low emission car, thus needing only two oxygen sensors.
4 oxygen sensors (2 front and 2 rear)
it has two one in front of engine another one underneat in the muffler pipe
IN THE EXHAUST SYTEM meaning a 4 cylinder has 2 a v6 has 4. IN THE EXHAUST SYTEM meaning a 4 cylinder has 2 a v6 has 4.
The 2005 Nissan Maxima is equipped with four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. These sensors play a crucial role in monitoring the exhaust gases and helping to optimize engine performance and emissions.
Assuming you have the V-6 engine, it has two downstream (after the cats) O2 sensors and two upstream (before the cats) Air/Fuel Ratio Sensors. So the answer to your question is two O2 sensors.
If the check engine light on your 1999 Nissan Pathfinder is illuminated, it could indicate a variety of issues ranging from a loose gas cap to more serious engine problems. It's advisable to use an OBD-II scanner to retrieve the diagnostic trouble codes, which can help pinpoint the specific issue. Common causes include faulty oxygen sensors, catalytic converter issues, or ignition system problems. Addressing the underlying problem promptly can help prevent further damage and ensure optimal vehicle performance.
where are the oxygen sensors on a 2004 ford escape with a 3.0 engine
On a Nissan 350Z, oxygen sensors are located in two main areas: the upstream (pre-catalytic converter) sensors are positioned on the exhaust manifold, while the downstream (post-catalytic converter) sensors are found on the exhaust pipes after the catalytic converters. The upstream sensors monitor the air-fuel mixture, while the downstream sensors check the efficiency of the catalytic converters. Accessing them typically requires some work under the vehicle or from the engine bay.