AudiWorld Forums

AudiWorld Forums (https://www.audiworld.com/forums/)
-   S4 / RS4 (B5 Platform) Discussion (https://www.audiworld.com/forums/s4-rs4-b5-platform-discussion-6/)
-   -   How does this O2 Voltage (Engine -> Measuring Block 031) Log look? (https://www.audiworld.com/forums/s4-rs4-b5-platform-discussion-6/how-does-o2-voltage-engine-measuring-block-031-log-look-1562840/)

bnl107 05-26-2005 07:45 PM

How does this O2 Voltage (Engine -> Measuring Block 031) Log look?
 
Just did a half-throttle 1-3 gear run. Ran a few different logs, but did this block 031 log of the O2 sensor voltages at the advice of a few of you after posting about my MBC install. I'm not sure what I'm looking at here, so maybe you can tell me if everything looks ok. Thanks.

<img src="http://www.personal.psu.edu/users/b/n/bnl107/O2%20Log.gif">

5lugnuts 05-26-2005 07:58 PM

You need need to go WOT for a better measurement...
 
try a 2nd gear run to redline.

bnl107 05-26-2005 08:02 PM

When I asked before I was told 1/2 throttle... can anyone verify this one way or another?

tusca 05-26-2005 08:07 PM

He indicated earlier that his symptoms only occur at 1/2 throttle.....no symptoms at WOT

bnl107 05-26-2005 08:15 PM

Yes, he is correct. My mistake for not explaining that in my original post. Thanks tusca :-)

bnl107 05-27-2005 04:11 AM

Almost 60 views and no one can tell me if this looks normal or not?

PSmalls::DoggieStyle 05-27-2005 08:09 AM

I don't know what you want to hear from us. At part throttle, the car will be at stoich.
 
That is why we have long term fuel trims, so the ECU can correct fueling at idle and part throttle in order to run at stoich.

I don't think logging 02 voltages at part throttle was a brilliant idea because of this, but just my 2 cents. IMO, your log is worthless and is of absolutely no importance. But then again, maybe I'm missing something!?

bnl107 05-27-2005 09:43 AM

I only did the log because someone on here recommended that I log it at 1/2 throttle (because....
 
... I am having my boost surge issues at 1/2 throttle). Like I said, I don't know what I'm looking at with that graph anyway, only did it cause someone recommended that I should (I'd love to find the post, but the STFA and Beta STFA are both worthless, say I only had 1 post in the last 2 weeks *rolls-eyes*).

BLK01S4 05-27-2005 04:21 PM

2nd that.


All times are GMT -8. The time now is 10:26 AM.


© 2024 MH Sub I, LLC dba Internet Brands