1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

Aem WB and ECMlink?

Posted by pur97tsifwd, Oct 20, 2010

Please Support Morrison Fabrications
Please Support Feal Suspension
  1. pur97tsifwd

    pur97tsifwd Proven Member

    297
    1
    Joined Jan 31, 2006
    Nevada, Missouri
    Ok I would like to install my ECMlink on fall break in my car but the Aem wideband I have gauge type is confusing me on hooking it up to the ecu. I know I have to solder the white into the front o2 and change the screw on the back to p4 setting and run the narrowband o2 simulator. My question is do i need to hook up the blue wire to another sensor input or will the white wire log the a/f on dsmlink. Also I have the sensor in the downpipe should I move it to the o2 housing I heard this is bad on the sensor but you get a better reading for the simulator.

    People that have AEM widebands and ECMlink running the simulator in v3 could you answer my questions and how you hook it up and what is best.
     

    527  0

    1993 Eagle Talon TSi AWD
    13.600 @ 101.000 · 1G DSM
    Loading...
  2. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    Before you start jumping head first in doing a WB install and logging it in dsmlink you need to install dsmlink FIRST and get your idle/cruise fuel trims tuned properly. Things just don't "line up" and start working perfectly after dsmlinks installed, even with a 100% stock car things need adjusted. Use these demo videos and ask questions, then do the below so you can setup you wideband.

    I suggest you install the WB sensor in the front o2 location and plug the bung thats in your downpipe, if you've got one. By installing it in the front o2 spot for simulation the WB sensor will react faster to changes being made to the AFR by the ECU, the further down the exhaust the slower the reaction and the more PITA its going to be to get it to run right. Its still possible to do because dsmlink has the tools to tune it properly, its just going to take a bit more to get everything to operate like it should.

    Below is a diagram I made for you really fast if you still decide to use the front o2 sensor wire like you originally posted. Pin 4 (WHT) wire is where you'll tap into so you can log AND simulate your front o2 sensor using dsmlink. Whether you decide to simulate the front o2 or use a different ECU input the blue wire won't be used so just tape it off and zip tie it out of the way.

    Heres your 1g ECU pinout --> 1g ECU pinout
    2gWBInstall-1.jpg


    After its installed your a few clicks in dsmlink away from having a logging and operation WB o2 sensor. Before you start the car you'll want to just turn the key to the "ON" position and connect your laptop to dsmlink, then follow the steps below...

    Setting Up o2 Simulation
    1. Go to your "live settings" menu
    2. Open your NBo2 Sim tab
    3. Enable your o2 simulation but checking the box
    4. Set your WB switch point to 2.34 (this might need some tweaking but should get you close)
    Logging WB
    1. Open your ECU Inputs tab
    2. Under the Pin Assignments for Datalogging (PC-side) menu click "Factory None" across from front o2 which will bring up a drop down menu.
    3. Select your WB, theres a few AEM WB gauges to choose from so unless you get lucky you'll probably have to go back and change this.
    4. Click the Save Pin Assignments button below.
    5. Click the Captured Values button and add the WB to captured values.
    6. Under the Pin Assignments for ECMLink Functions (ECU-side) menu click the "Undefined" drop down menu next to Wideband.
    7. Select front o2.

    Easy enough? After you do the above start the car and let it warm up to operating temp. while its capturing a datalog. Then attach the log to a post in this thread and we'll see what changes your going to have to make.

    :dsm:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  3. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    ^These types of posts are what deserves to click on the poster's "tag this post as helpful"

    God job on the explanation.

    I still would like my pics of the evo mud flaps that you installed on your 2g, that I asked about in your thread a while ago. LOL
     
  4. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    Thanks, I'm glad someone appreciates these long as hell write-ups I do occasionally.
    About the mudflap pictures and write-up I've been putting it off because I still like claiming I'm the only 2g with RallyArmor flaps. :thumb:

    :dsm:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  5. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    Not for long, mine have been in my porch for about a month now. One way or another (meaning pics or no pics) they will be installed on my 2gb very soon. I'll post a video on YouTube on how to do it. :hellyeah:

    I kinda do what you do but in video form. Check out my YouTube page under jjrock5. I have "a few" DSM vids for the DSM community. :)
     
  6. pur97tsifwd

    pur97tsifwd Proven Member

    297
    1
    Joined Jan 31, 2006
    Nevada, Missouri
    Thanks gofer that was exactly what I was looking for thanks for the help :thumb:
     

    527  0

    1993 Eagle Talon TSi AWD
    13.600 @ 101.000 · 1G DSM
    Loading...
  7. gixrman

    gixrman Proven Member

    1,603
    11
    Joined Nov 13, 2002
    Frederick, Maryland
     

    957  0

    1997 Mitsubishi Eclipse GSX
    · 2G DSM
    Loading...
  8. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    Its good you follow the AEM WB manual but DSM'rs have run and will continue to run their WB sensors in the front o2 spot with no problems. I know I'm basically the only one posting up in this thread but I want to say 75% of the DSM's on the dsmlink forums run it there with absolutely no issues.

    :dsm:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  9. gixrman

    gixrman Proven Member

    1,603
    11
    Joined Nov 13, 2002
    Frederick, Maryland
    Well I went and did some more digging and found a post by Kiggly(and others) where he suggests and states that how he runs it with no issues(1st o2 port) and has had no problems. I haven't had any issues with mine and have been running it for yrs. 36in. downstream, but my manifold and downpipe are wraped to keep the heat in, maybe that helps.

    But thanks for doing the complete writeup.
     

    957  0

    1997 Mitsubishi Eclipse GSX
    · 2G DSM
    Loading...
  10. dsmdeliveryboy

    dsmdeliveryboy Proven Member

    1,456
    3
    Joined Aug 14, 2007
    Medford, Oregon
    Also, if your installing a AEM wideband in your car ECM recommends you run a ECU buffer with it because the AEM has been known to not work the best with Ecmlink.
    ECMTuning, Inc.
     

    1K  0

    1990 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  11. pur97tsifwd

    pur97tsifwd Proven Member

    297
    1
    Joined Jan 31, 2006
    Nevada, Missouri
    I thought the buffer was only for the egr on a 1g or on a 2g the baro for installing a sensor input.
     

    527  0

    1993 Eagle Talon TSi AWD
    13.600 @ 101.000 · 1G DSM
    Loading...
  12. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    Your both correct. The buffer was designed for the 1g EGR and the 2g Baro inputs that both share a pull up/pull down resistor configuration. For instance if you log a WB on the 1g EGR input it might cycle just fine but when going WOT the sensor will only read as rich as 12.5:1, for obvious reasons you'd NEED the buffer circuit to fix this.

    In the AEM UEGO's case you don't NEED the buffer circuit because the gauge will log from full rich (10:1) to full lean (17:1). In most cases though the logged value your seeing on link won't match the displayed value on the gauge. Thats why there are so many different versions of the gauge offered in dsmlinks ECU inputs selections.
    If none of the AEM WB gauges match the logged to the displayed then you can select "LinearWB" from the gauge selection and use your own values to get it to log accurately. Again, once you get everything setup and logging we'll get you setup so everythings good to go.

    :dsm:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  13. e85_4g63

    e85_4g63 Proven Member

    1,401
    10
    Joined Nov 17, 2008
    Manheim, Pennsylvania
    (gofer) Nice write up on the 1g install. I assume (although I'm not sure, hence why I'm asking) that I could just install my AEM wideband o2 in the front location (I have a 97 tsi) and wire it into dsmlink (v3 lite in my case) to use for o2 sim and logging? I've searched a little, but don't really understand the CORRECT way to do this (in a 2g). Sorry to the OP if this is considered high jacking...

    Anyway could someone (gofer perhaps) point me in the right direction? (looking for something simular to the 1g install here (only for a 2g of course)
     

    1K  0

    1990 Plymouth Laser RS Turbo
    manual · 1G DSM
    Loading...
  14. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    Sorry, I guess the thread didn't notify for whatever reason after you posted so I wasn't able to get in here sooner to help. The above info in my first post still applies running it on a 2g (95-99) the only thing that changes is what wire to tap into the ECU, below is the the 2g UEGO wiring and 2g ECU pin out info.

    2g ECU pin out

    2gWBInstall-2.jpg

    :dsm:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  15. johnovision27

    johnovision27 Proven Member

    350
    1
    Joined Apr 3, 2008
    Ayr, ON, Canada
    Cha-ching! Just what I was looking for. Thanks :D
    Hopefully I'll be able to post my logs by the end of the weekend and get some input from my fellow DSMers.
     

    473  0

    1997 Mitsubishi Eclipse GSX
    · 2G DSM
    Loading...
  16. Dert

    Dert Proven Member

    819
    9
    Joined Mar 8, 2008
    Lethbridge, AB, Canada
    I would just like to say thanx to gofer and jrock, gofer provides some of the best and descriptive replies I have ever read on on any forum, he has helped alot of people including myself out many times, jrock probably has the most descriptive and informative dsm videos on YouTube, he shows parts and explains what he is doing in great detail and makes alot of mods easier for newbies to understand, so on behalf of the dsm community I say thanx and applaud you for your dedication to helping out fellow dsmers and helping prove what makes owning and modding a dsm is all about...kudos-Gary
     

    568  0

    1997 Mitsubishi Eclipse GST
    · 2G DSM
    Loading...
  17. johnovision27

    johnovision27 Proven Member

    350
    1
    Joined Apr 3, 2008
    Ayr, ON, Canada

    +1!!
     

    473  0

    1997 Mitsubishi Eclipse GSX
    · 2G DSM
    Loading...
  18. Imback

    Imback Proven Member

    899
    16
    Joined Nov 8, 2006
    Elmont, New York
    I want to see how this works out for you guys using the ugeo through link. I've done it on a few cars as well as my own and the ugeo always was off from what link was showing. This is due to the voltage that the ugeo puts out. I even tried it through LINWB which always you to change the voltage reading and was still off. But gofers diagram is correct. Also if you use a different WB like a lc-1 you can log it through the egr pin15 on a 1G with out a buffer.

    aemwb [ECMTuning - wiki]
     

    570  0

    1995 Eagle Talon TSi AWD
    manual · 2G DSM
    Loading...
  19. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    Thanks, bro. :hellyeah:
     
  20. Dert

    Dert Proven Member

    819
    9
    Joined Mar 8, 2008
    Lethbridge, AB, Canada
    No problem jrock, I used your fuel pump and fpr videos and it made it a breeze to install. I'm a subscriber to your vids too
     

    568  0

    1997 Mitsubishi Eclipse GST
    · 2G DSM
    Loading...
  21. tk106

    tk106 Supporting Member

    1,439
    307
    Joined Sep 11, 2017
    Cincinnati, Ohio
    So I've tried starting a new thread but just can't figure it out. I just purchased this car about a month ago, and I'm trying to dial in base tune. TPS is at .63, idle switch working properly and throttle cable also adjusted properly. Fixed all boost leaks, checked timing, new plugs gapped .028, I haven't purchased a FPR yet so I'm guessing fuel pressure is 37psi (stock FPR isn't leaking). FP solenoid was removed and it's pretty much stock except for rewired 250 Walbro and RC 550s. It has link V2 with AEM UEGO WB in the rear wired to pin 4 on ECU. Think this is an older gauge bc I don't see p4 behind it. My AirflowperRev is .25/.26 but my combineFT in closedloop drops to -20% so I've tried adjusting deadtime but that didn't change anything. My question is, Is this the correct set up or should I move the AEMWB to the front? Is this the reason why I can't dial in combinedFT? I do plan on upgrading to V3 but just don't have $250 to shell out right now. Replacing all seals, gaskets, fuel filter, pump screen filter ($20 WTF), regular maintenance items so things add up quick. Not to mention getting all the missing interior pieces. Any input would be greatly appreciated. Thank you!!
     
    Last edited: Nov 8, 2017

    121  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    119  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 2K  6

    1992 Eagle Talon TSi AWD
    12.625 @ 111.42 · 1G DSM
    Loading...
  22. gofer

    gofer Moderator

    5,482
    968
    Joined Feb 18, 2006
    South Gilbert, Arizona
    What are your injector globals? You know the benefit of having ECMLink is the ability to post a log. :thumb:
     

    Street Build 16K  11  61

    1997 Mitsubishi Eclipse GST
    11.634 @ 126.050 · 2G DSM

    2K  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  23. tk106

    tk106 Supporting Member

    1,439
    307
    Joined Sep 11, 2017
    Cincinnati, Ohio
    Pretty sure it was calculated to 18.2 or 18.4%. I ordered V3 upgrade today so ECU is coming out tomorrow. I'm new to ECMlink and have been researching the BLEEP out of it for a month now. Had a 2g GSX w SAFC and paid turbotrix to tune it but that sold about 13 years ago. How do I upload a log? I know where the logs are in link, but have no clue how to get it out of there to my desk Thanks gofer!
     

    121  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    119  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 2K  6

    1992 Eagle Talon TSi AWD
    12.625 @ 111.42 · 1G DSM
    Loading...

Share This Page

Support Vendors who Support the DSM Community
Archer Fabrication ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RockAuto SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory WheelWell.com