lemieux@curbside

it took me a little to figure this thing out , i hope this is an ok job
i have couple q-s
1)what exactly is "O2S pre and post TWC " are these the O2 sensors per bank 1 = pass side and "b2 pre and post TWC" are the 02 sensors per bank 2 = driver side ?
2) looking at the "b2 pre TWC" ..seems to go on the low side- lean out a bit , but the other O2 sensor reads fine down stream - the "b2 post TWC" ... could that be a bad 1-st O2 sensor ?
it went even lower with the next run (second pic has 2 logs back to back 3-rd gear o2 sensor Voltages)

<img src="http://pictureposter.audiworld.com/47312/o2vlog.jpg">

<img src="http://pictureposter.audiworld.com/47312/2o2sensorlogs3-rdgear.jpg">



3) does the block 034 has the EGT for one side or an average for both sides ? seems pretty low and good/safe correct (on another 4-th gear log the egt went up to about 840 C) ?

<img src="http://pictureposter.audiworld.com/47312/egttemps.jpg">

4)how much can i adjust the timing based on my CF's ? there should be some room there i see (and per DAP

<img src="http://pictureposter.audiworld.com/47312/cfs.jpg">

and finally here is the boost nice and flat and the knock voltages :

<img src="http://pictureposter.audiworld.com/47312/boost.jpg">

<img src="http://pictureposter.audiworld.com/47312/knockvoltage.jpg">

JBear::FATS

Those CF are are WOT ? Damn. I would add 2.25 degrees and log CF again .

lemieux@curbside

yep WOT ..94 oct .

PSmalls::DoggieStyle

You want to pay most attention to the front sensors (S1 on each bank).

Do you have a TCD? What were the weather conditions?

Captain Matt, I be

bank2 precat sensor looks a bit off. theres definitely room for more timing though!

lemieux@curbside

you can see the sensor down stream on the same side show up ok..could it be the sensor going ?
i would think that if the mix would go toward the leaner side the post TWC sensor on the same side would show low also ..but it does not .

lemieux@curbside

you think we can do it one of these days ? did you get the lemmi to work at all?

Captain Matt, I be

bit on my car too.

PSmalls::DoggieStyle

Yep, good eye. I didn't really look too carefully at that, but you are right. Swap in a new one.

lemieux@curbside

the temps (A/F ratio) was my main concern besides eventual boost leaks ..that i don't have.
thanks for the tips and help doc !