Anyone have an opinion of who's best out of Bosch, NGK or Denso?
Personally, I've only been able to find bosch locally so thats what I pick up but I haven't had a bosch o2 last longer than it should last...one was replaced at 22k and the other 24k! They should last 30k, what a ripoff ya know?
sparkplug.com has them cheap as the local stuff.
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"You have to know the truth, and seek the truth, and the truth will set you free."
-unknown
in my experience o2 sensors rarely cease to operate. However, its a question of how well they work as they age. I wonder if a mechanic with a scanner would say your o2 is "healthy" or not?
As the sensor ages it will get whats called sluggish, it will not necessarily ever break or fail.
Sluggish means that the voltage coming from the o2 will greatly transition only once per second. This lean to rich fluctuation should happen twice per second or more on the newer cars(o2's) to be called "working" and "healthy"
The fluctuations are simply lean/rich representations as voltages. There are "bench tests" that can check an o2 but I really don't think they are worthwhile and accurate. A running test engine and scanner will show you exactly whats going on.
__________________
"You have to know the truth, and seek the truth, and the truth will set you free."
-unknown
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