Help! O2's way off from each other.
 

One O2 is at .9 something and the other is at .6! Thry were fine before header install. What's wrong?

Re: Help! O2's way off from each other.
 

im guessing thats your avg...
if its reading .6 thru the whole run, then its bad.
but make sure its not just a couple of readings that are really low and throwing the avg. that low.. if you have 10 readings at .9 and then one at .01, take that one out

Re: Help! O2's way off from each other.
 

that .6 isnt during a shift is it <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

but if your logging a pull in one gear then they shouldnt be that far apart, cause one side is running exteremly lean!!

lean is usually .88 and below

u havent gotten any 02 sensor lights have u?

Re: Help! O2's way off from each other.
 

The .6 is the average. I'll check the log again and see how many are low like that. What would cause one side to run so lean if the other is rich? No codes, yet.

Re: Help! O2's way off from each other.
 

Exhaust leak would be my guess.

Especially after a header install.