Need to know what is, or how to find, the RequestID for Rear Sensor AFR. RomID is 55590006 (2010 RASB), and all wired up for WBo2. Problem is it only registers 10

 

Rear 02 is 23808681 I believe...

Could be wrong though

 

alright I'm getting a reading now, thanks! But my formula seems to be way off (AFR of ~280, kaboom, haha)
I have 0v=10 & 5v=20,
So based on tephra's model
2*(5*x/1023)+10
where am i wrong?

 

Also, one more question:
For the Mode23 2010 USA RA EVOX ECU there are only about a dozen data items. Is there a list posted somewhere so I can start inputting more data items, or can I simply look at the non-2010 ECU (i.e. Mode23 USA RA EVOX) and just use those RequestID's? I'm guessing that specific ECU must be for 2009 RA's?

 

What specific items are you looking for?

 

Well right now I need to figure out why the formula for the AFR is not working. Based on tephra's How-To, I've spliced the WBo2 into the ADC (yellow wire for the rear o2), and the rear o2 is turned off.
So, thankfully you provided me with a RequestID different than the one in the post, due to different ECUs. So I'm wondering if the formula for the ADC is also different, which would explain why EvoScan shows an AFR of ~230-250, when the gauge itself is showing ~14.3-14.8.
So I guess my current question is what is the formula for the ADC (i.e.):
0v=10 5v=20
AFR=2*v+10
v=ADC=??? (according to tephra 5*x/1023, which is giving me an AFR of 230-250 as stated above)
Thanks,
Steve

 

OK Bryan I found your thread on 2009+ RA EvoScan addresses and info.
Input all your specs into the data line for Rear O2, with one change:
EVAL is 2*(0.01953*X)+10 to accommodate the different signal from the ProSport WBO2. Man I'm SOOOOO close, its off by about 1 full AFR, arrrgggghhh!
I'm at virtual sea level, so when the gauge says ~14.7 I'm inclined to believe it, especially when I checked against your GST Base Map I have installed (which indeed shows 14.7 for the idle).
So now my FINAL QUESTION (I hope), is in what way should I modify the EVAL so EvoScan's output matches the gauge's output??

 

Deerrr, how about +11 not +10 (palm:face)

 

Hey Bryan (or someone else in the know),
Just want to verify that I'm going in the right direction:
As stated above when I input 2*(ADC)+10 I'm 1 whole afr below what I should be at (based on both the Gauge, and the Fuel table showing 14.7 at idle)
So is the formula off, and I should change it to 2*(ADC)+11; or is the reading right despite the Fuel table and Gauge?
Thanks,
Steve

 

sstevojr did you get it figured out? I'm looking for similar info but no one seems to be answering this last question..

 

Ya I've tried several sources for specific answers, but none to be found. I understand its proprietary information, hence the lack of disclosure (no ill will, I completely understand).
What I personally ended up doing is splitting the difference to +10.5
There is the basic notion that a gauge doesn't match the Fuel Map on a 1:1 basis, since its one of ~dozen inputs. But when sitting at idle, completely warmed up so that map isn't having an impact, I would like to believe that is when the gauge should be the closest to the High Fuel Map. Differences of up to .4-.5 can be expected, but for me personally I think being off by 1.0 is a bit much.
What WB are you using?
I got the ProSport kit and there is a tiny little switch behind a sticker on the back. It says "OFF" on top, and then two miniature light switch type switches. "1" and "2"are in opposite positions (one off, one on), but i have NO IDEA what the hell these do. Maybe they have an impact....?
Good luck hope this helps a bit
-Steve-

 

I'd help you out but I haven't done it yet myself on my RA.

 

Its all good, I appreciate all you done for the community at large. With out your efforts we would be severely limited in scope
I'm looking forward to digging into your research on MIVEC tuning!

 

I am using the prosport wideband as well, but on an 8. I've been looking and looking for the equation and this is the closest I've gotten.

I wouldn't worry too much about those little switches. Call prosport and ask what they do if you're that concerned.

I'm assuming you have the digital gauge correct?

 

Hey ssteveojr I PM'd you but just in case I'm ressurecting this thread. I know you have a ralliary but the settings should still be the same. Did you ever figure out if its 10.5? Also I assume you replaced the LC-1 EVAL with the formula you posted earlier in this thread. I'll be trying this tonight to see if it will log