Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Logging Wideband AFR via Rear O2 ECU ADC Input

Thread Tools
 
Search this Thread
 
Old Aug 24, 2009 | 09:01 PM
  #16  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
Ok, so I'm actually doing this right now.

I ran out of daylight, so I'll finish the actual wiring tomorrow.

I have a HowTo coming with pictures as well, if anybody is interested.
Reply
Old Aug 24, 2009 | 11:27 PM
  #17  
stokEd's Avatar
Thread Starter
Evolved Member
iTrader: (3)
 
Joined: Sep 2008
Posts: 1,271
Likes: 1
From: Denver, CO
Thumbs up

Originally Posted by xPRimNT
Ok, so I'm actually doing this right now.

I ran out of daylight, so I'll finish the actual wiring tomorrow.

I have a HowTo coming with pictures as well, if anybody is interested.
Excellent, report back when you've got it together.

I had to put this on hold until I tracked down a boost leak. Just figured it out tonight: leaking Diverter Valve. Solution: took the thing out, flipped it then reversed it (just like that Missy Elliott song...lol.)
Reply
Old Aug 25, 2009 | 06:18 AM
  #18  
coevolve's Avatar
Newbie
 
Joined: Sep 2008
Posts: 81
Likes: 0
From: Northern VA
Originally Posted by xPRimNT
Ok, so I'm actually doing this right now.

I ran out of daylight, so I'll finish the actual wiring tomorrow.

I have a HowTo coming with pictures as well, if anybody is interested.
\

If I understand this correctly, you are disabling the rear 02 sensor to convert it's input (yellow wire) into the ecu for evoscan...

Are you welding a new bung for the WB onto the DP and plugging the rear 02 bung?
Reply
Old Aug 25, 2009 | 07:46 AM
  #19  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
Originally Posted by stokEd
Excellent, report back when you've got it together.

I had to put this on hold until I tracked down a boost leak. Just figured it out tonight: leaking Diverter Valve. Solution: took the thing out, flipped it then reversed it (just like that Missy Elliott song...lol.)
How did you figure out that you had a leak? Stock BPV?


Originally Posted by coevolve
\

If I understand this correctly, you are disabling the rear 02 sensor to convert it's input (yellow wire) into the ecu for evoscan...

Are you welding a new bung for the WB onto the DP and plugging the rear 02 bung?
That's the gist of it!

I have a test pipe, so instead off putting the rear O2 sensor in the bung, I put the WB sensor. I'll have many more details soon.
Reply
Old Aug 25, 2009 | 07:50 AM
  #20  
gsrboi80's Avatar
Evolved Member
Photogenic
Photoriffic
Shutterbug
Liked
iTrader: (38)
 
Joined: Aug 2005
Posts: 7,909
Likes: 47
From: On a cliff
Doing this on my CT9A I still have the rear O2 connected though as it still needs to see the heater circuit or it will chuck a CEL.

My NGK works awesome this way have been logging for over a year like that
Reply
Old Aug 25, 2009 | 08:32 AM
  #21  
stokEd's Avatar
Thread Starter
Evolved Member
iTrader: (3)
 
Joined: Sep 2008
Posts: 1,271
Likes: 1
From: Denver, CO
Originally Posted by gsrboi80
Doing this on my CT9A I still have the rear O2 connected though as it still needs to see the heater circuit or it will chuck a CEL.

My NGK works awesome this way have been logging for over a year like that
Do you have P-bit disabled in EcuFlash?
Reply
Old Aug 25, 2009 | 08:47 AM
  #22  
gsrboi80's Avatar
Evolved Member
Photogenic
Photoriffic
Shutterbug
Liked
iTrader: (38)
 
Joined: Aug 2005
Posts: 7,909
Likes: 47
From: On a cliff
Yup rear O2 disabled in P-BIT, WB pinned directly to ECU and EVOSCAN xml modded with widebands operating range formula
Reply
Old Aug 25, 2009 | 10:12 AM
  #23  
stokEd's Avatar
Thread Starter
Evolved Member
iTrader: (3)
 
Joined: Sep 2008
Posts: 1,271
Likes: 1
From: Denver, CO
Originally Posted by gsrboi80
Yup rear O2 disabled in P-BIT, WB pinned directly to ECU and EVOSCAN xml modded with widebands operating range formula
Great, thank you.
Reply
Old Aug 25, 2009 | 09:25 PM
  #24  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
Installed

I'll test logging and get the HowTo up tomorrow.

(Man that harness is hard to get to)
Reply
Old Aug 26, 2009 | 09:43 AM
  #25  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
Tephra, will logging the ADC at that address slow down the other Mode23 items? Or is there a Mode23 address for ADC (if it isn't already)?
Reply
Old Aug 26, 2009 | 04:01 PM
  #26  
tephra's Avatar
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
yeh the more things you log the slower they all go.

what u logging now?
Reply
Old Aug 26, 2009 | 04:43 PM
  #27  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
Damn, I may need to get in touch with you about the address.

And I know the more things you log the slower it goes, I was just wondering if the address you mentioned was "Mode23".

The address isn't yet working for me. I'll try a few more things and then cry for help. Would you mind double checking the address for 52680020?
Reply
Old Aug 26, 2009 | 05:39 PM
  #28  
tephra's Avatar
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
Originally Posted by tephra
0x80834E - it's 2byte
Its a memory address, if you want the requestid for evoscan, it will be something like 0x2380834E, make sure you set ResponseBytes="2"
Reply
Old Aug 26, 2009 | 07:55 PM
  #29  
xPRimNT's Avatar
Evolved Member
15 Year Member
Photogenic
iTrader: (4)
 
Joined: Feb 2008
Posts: 610
Likes: 0
From: Edmonton, Alberta
^ Figured it out. The address was wrong. I'll have all the details up in a bit.
Reply
Old Aug 26, 2009 | 07:56 PM
  #30  
tephra's Avatar
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
what my address was wrong?
Reply



All times are GMT -7. The time now is 08:19 AM.