NEWBIE ?
Thread Starter
TECH Fanatic
Joined: Aug 2003
Posts: 1,768
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From: Lexington, NC
NEWBIE ? Ok guys i did a diagnostics test today and was wonderin about one thing. I think it has to do with the O2 sensors. It said bank 1 and bank 2. They were around 850 is this good or what. Thanks for the infor. Also i am getting 0 KR 
Re: NEWBIE ? You mean 850 mV at WOT? If so, that is probably slightly lean; you want 870 to 920 mv at full throttle. But this isn't a very reliable measure anyway, I'd get a wideband O2 sensor or take it to a dyno shop that has one.
Re: NEWBIE ?
no thats not at wot thats just normal driving
I think you are looking at the O2 sensors after the cat's ... which is wrong. You need to be sure you are monitoring the o2 sensors BEFORE the cats, and not the ones after the cats.
The front O2 sensor voltage reading should fly all over the place during normal driving. Only at WOT should it come to a rest at a single reading, since your computer is no longer fine tuning the a/f ratio as it does when you are not at WOT.
I have a a/f gauge that monitors the output of the o2 sensors and gives me a reading in mV's ... and it is constantly bouncing around during normal driving.
