I'm have some problems with my o2 sensor. (i think the damn thing is bad) I was wondering at what voltage does the o2 rich box check itself, or uncheck?

 

Thats a question for Henrik, but it should be pretty easy to figure out by looking at the o2 volts.

 

yeah but mine o2 is only reading above .7 right now going to slip a new one in tomorrow. ( i hope) I'm guessing its in the .6 range.

 

I can pull a log of mine tomorrow if i can get the damn palm to stay connected long enough. (The athena connector on the newer palms SUCKS HARD)

 

I agree with the conectors, mine is missing one pin so it is even less stable. Just by eyeballing it, it looks like .6. But im still not 100%

And another favor, can you see what o2 voltage you are running at idle? Mine is really high right now and i'm trying to get an idea of where it should be.

Damn Emmisions.

 

My O2 voltage at idle is around .8-.9v Im swapping the sensor out to check if its readings are inaccurate.

 

I dont think I've ever seen a bad O2 sensor that reads high. When they go bad, they read lean causing a rich condition. If your o2 is reading rich, its most likely a tuning or (other) sensor issue (like temp,etc..).

 

With no airpump/acv, I don't think seeing 0.8 vdc is unusual at all. It depends on how rich the idle is. I mean whether your idle is at a 13.5afr vs a 12afr.

With a airpump and a acv operating RIGHT, the afr on a narrow band will be close to zip. As in 0.10 or so.

 

Well somethings wrong with the damn thing. I've used a new o2 sensor and my widebands narrow band output and they booth read high. My wideband readings are ok, but the narrow band is really narrow. Of course I screwed up my veriable resistor settings messing with the damn thing.

I'm going to have to mess with my ACV and see if its dumping air into the exhaust stream at idle. Still seems werid that i get such different readings from the same sensor in both wide and narrow bands.