Anyone w/ a DSM know what the best way to test an O2 sensor is? Is it the normal plug it into a voltmeter and read it at idle to see if it stays steady?

any help would be much appreciated.

 

I dont think it should stay steady. I believe it should actually be fluctuating alot.

 

right, what i mean is check it to see if its "stuck"
after it warms up it should start to fluctuate quite a bit as you said.

right?

 

Hook an autometer 02 gauge to it and watch it. You will know.

Also it would code if the sensor was bad.

 

yeah, thats what im trying to troubleshoot, is that the check light is on, car stubles like its misfiring between 2500-3500rpm ... i should probably check the readout from the test plug and at least narrow it down

 

You sure you don't need a tune up?
If you get the code pulled it will help alot more then playing with a volt meter.

Thats one of the good things about obd systems. At least use the good to your advantage when you get a chance. Autozone will pull the code for you for free.