View Full Version : o2 sensors log (bank 43 & 44), help with diagnosis?

02-08-2008, 07:05 AM
you can view the log at. this is as far as i could get before the battery in my laptop shut off on the way to work. this is from a cold start up until, however long it goes when i got on the highway.


cat temps, voltage to the o2's, does everything look ok? which o2's are these anyway - front or rear? i just bought 2 rears and hope to put those on this weekend to get rid of my cat inefficiency CEL.

can anyone tell me by looking at these if there is a problem? are there other banks i should log?

02-08-2008, 10:36 AM
From what I have learned your voltage should reside somewhere between .1-.9 (roughly) volts. It will be constantly variable in between. You should be averaging around .45. Let me see if I can graph it for you.

02-08-2008, 10:41 AM
that looks to be about what i'm logging. so my question again are those 2 banks for the front o2 sensors (remember, 30v 2.8)? if so, and if they look good, then i have the back 2 ready to go so hopefully that's the problem.