o2 sensor

[johnm126]

I have a 2000 nissan maxiam that I have been having issues with.I have had a few different codes come up from system to lean to misfire to rough idle .weve replaced the ignition coil new plugs, a idler valve and cleaned the maf , At the moment the light is reading system to lean on bank 2. but the reading for bank 1 sensor 2 are showing .28 and .99 and these readings do not change they stay right there at high idle or low, any help , thanks john

[Ozzie]

The o2 sensor value should fluctuate, once they are warm, between 0.15volts, and 0.85 volts.
This should cycle between these values every second.
If they are stuck on one value, or do not fluctuate very much, from low to high, then you have a problem with one (or both).

Here's a video to describe what I mean. (Please excuse the audio, as it's a bit painful)
[youtube]http://www.youtube.com/watch?v=ToRGk05_EV4[/youtube]

Also, welcome to Nico!
Use the search button on the right to look for solutions to any other question you may have, and feel free to check out the maxima forums. There are quite a few switched on people there who may be able to help you out with more maxima specific information.

[johnm126]

thanks for your info, im thinking its bad it never changes stays on those readings