There are two ways to test it. One is by using a voltage tester and the procedure is stated in the Haynes Repair Manual at Advance Auto Parts and Auto Zone. The other way is to monitor your fuel economy and the color of your exhaust. If your fuel economy sucks and your fuel isn't exactly clear (on a warm day), then you O2 might be bad. My O2 sensor is bad. I replaced one and I'm going to replace the other one too. Both were upstream, bank1 sensors.
with your hands and some tools
If bank 1 and bank 2 sensor bad car won't start
I found this great site about Nissan O2 and its location to fix.. http://maxima.theowensfamily.com/tsb/index.asp?year=2000&tsb=none Search for NTB02-051a All O2 Sensor Replacements Thanks... Jim
bank one is drivers side, sensor 2 is rear O2 sensor(oxygen sensors are screwed into exhaust pipes)
Answer I found this great site about Nissan O2 and its location to fix with diagrams!
one
Trouble code P0139 means: O2 Circuit Slow Response (Bank 1, Sensor 2) Replace the downstream O2 sensor
Have you replaced the distributor cap? I have a 94 Maxima that would not start due to a cracked distributor cap. (Check for sparks under the hood when it's dark.)
I have a '96 Maxima. The O2 sensor and the NOX sensor were replaced at the same time. The parts were $400, and the labor was $500 (the intake manifold had to be removed for one of the sensors). TOTAL COST: $900
Trouble code P1320 means: Distributor Signal Interrupt
There is a total of 3 O2 sensors 2 Upstream and 1 Downstram
No, it will not pass the smog test with a defective or removed O2 sensor.