Alright, I've searched two whole days for an answer to this. Some people say yes, some say no with the DSM ECU. I'm installing my wideband UEGO gauge, If I want to also have it monitor narrowband, do I splice the white wire into the o2 wire in the car via this diagram Finding the O2 Sensor Wire ? I need to know how I run the wire correctly to it.

Set the rotary knob to p4, cut the o2 wire to the ecu, connect the white wire from the uego to the ecu o2 input. I run all of my cars like this. It works better with the sensor in the stock location.

I know this is a bit old, but my o2 sensor it taking a crap on me and I REFUSE to pay $168.70 for a new one from mitsu. So i want to use an AEM EUGO w/ narrow band sim. but i have a few questions. First, the diagram posted above, i dont get it, is that female spade connector just chilling there with nothing attached to it or do i need to unplug it? and is is ok if i put the WB o2 sensor in the stock o2 location? Also i have an o2 housing with an atmospheric dump tube, with this cause the sensor to get a bad reading?

92EagleAWD said:

I know this is a bit old, but my o2 sensor it taking a crap on me and I REFUSE to pay $168.70 for a new one from mitsu. So i want to use an AEM EUGO w/ narrow band sim. but i have a few questions. First, the diagram posted above, i dont get it, is that female spade connector just chilling there with nothing attached to it or do i need to unplug it? and is is ok if i put the WB o2 sensor in the stock o2 location? Also i have an o2 housing with an atmospheric dump tube, with this cause the sensor to get a bad reading?

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Well in order to run narrowband sim you are first going to need ecmlink, do you have that? If you have ecmlink then yes you can install the wbo2 in the o2 sensor housing. Here is a write up on how to wire the uego to log in the front o2 location: http://www.dsmtuners.com/forums/articles-electrical-wiring/383190-1g-2g-aem-uego-wiring.html.

If you don't have ecmlink or you can always get a NTK o2 sensor for $57 from both Rock Auto and Summit Racing.

Hope this helps!

9!'clipseDOHC said:

Well in order to run narrowband sim you are first going to need ecmlink, do you have that? If you have ecmlink then yes you can install the wbo2 in the o2 sensor housing. Here is a write up on how to wire the uego to log in the front o2 location: http://www.dsmtuners.com/forums/articles-electrical-wiring/383190-1g-2g-aem-uego-wiring.html.

If you don't have ecmlink or you can always get a NTK o2 sensor for $57 from both Rock Auto and Summit Racing.

Hope this helps!

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You don't need any tuning solution at all to run narrow-band simulation. The aem unit itself produces the 0-1v output signal the ecu expects to see from the stock o2 sensor, when the rotary knob is put to p4, and the white wire is run into the ecu as the only o2 sensor input.

I was not aware of that.

I believe most WB units do this. The Zietronix puts out both a WB and NB signal directly.

The advantage of using ECMLink NB simulation with just the WB input is that it frees up the front O2 input for another sensor.

Ok, thats what i though, thank you guys for confirming this for me! But what about the spade connector?

Ok, so i get the white wire from the UEGO to the ECU o2 input (pin 4.) In my original post Finding the o2 sensor wire. What plugs into this? Does the blue wire from the UEGO plug into this and help log through ECMLink?

Jiggalude said:

Ok, so i get the white wire from the UEGO to the ECU o2 input (pin 4.) In my original post Finding the o2 sensor wire. What plugs into this? Does the blue wire from the UEGO plug into this and help log through ECMLink?

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The blue wire from the UEGO isn't used at all. The wire/ connector in that link is the o2 sensor check connector which you won't use either if you already have the white wire from the UEGO hooked up to the o2 sensor ECU input.

I have the white wire from the UEGO connected to the ECU Pin. But when I connected the ECMLink it still read 0.05v. I activated the narrowband simulation with ECMLink but I don't understand why UEGO isn't affecting the narrowband. Also, maybe you can help me understand why if I pump my brakes I go lean. Even with the vaccum hose off the intake manifold that runs to the brake master cylinder and cap it. If I pump the brakes it still goes lean. Could this be caused my a bad battery?

Just wanted to drop in and say I have the same problem Jigga, so I'll be interested if you figure it out. Also, with the going lean issue, what fuel pump are you running? If you have a Walbro 190 or greater I would imagine an alternator that isn't up to par would cause the pump to put out less fuel. Just a thought and GL with the UEGO problem


Eric

If you have the uego set to p4 you dont need to activate narrow band sim. You just leave ecmlink settings set as if it was a stock sensor. If you put the uego to p0 then you need to lock o2 voltage and set the ecu pin for the aem wideband and activate narrow band sim.

So, I just need to turn off the narrowband sim and let it go? What value would I log to make sure the o2 is actually switching? Thanks for the help.

Yes if you have the uego set to p4 turn off nbo2 sim. Log o2 voltage and log closed loop switch. o2 voltage should bounce form around .20 to .80 and closed loop should be on (1) within about 30-40 sec of the car idling. Also log your fuel trims and airflow per rev to make sure your injectors and w/e maf set up you have is properly tuned.

Awesome. I wonder why I couldn't that easy of an answer from the ecmlink forums . I'll take care of that once the laptop charges. Thanks again, man.



EDIT: Works perfectly now. Don't know why I never tried turning narrowband sim off, guess that seemed counter-productive at the time . Thanks again man, I'm stoked to finally be able to use my closedloop fuel trims again.

No problem. Report back with your results.

For the ECU it is pin 4 correct? Oxygen sensor input that the white wire from the wideband connects to correct?

Correct

any updates?

Haven't had a chance to try it on mine. Right now I have the white wire from the UEGO to the ECU Pin on the back of the ECU obviously. I think I also have narrowband simulation on with ECMLink. So thats probably why I'm not getting a good reading. I've been pretty busy lately so I'll have to see what happens when I get a chance.

Ok I got everything fixed with the o2 simulation. And i captured another log today. It's important to note that my AEM UEGO wideband says 15.0(stoich) at idle, but if you look at the log it's telling me I'm running pig rich. I can say for a fact that after sitting in my car, I smell like gas. But how do I fix this problem? I can't run a wideband gauge that reads stoich and I'm really running rich, obviously thats not safe. Am I missing something in the log? The car seems to idle a little rough also and like I said it stinks like fuel sitting and idling. Any help would be appreciated! Oh and the wideband is in the front o2 housing and this is a stock 1g except for a big FMIC.

Ok if you want to log the uego then you need to set it to p0 as I told you before. Also you will need to set your o2 pin to one of the 5 or 6 choices of aem wideband (not all of them work so you will need to try them all to see which gets you the best result). Also you will need to turn on narrowband simulation and lock o2 voltage.

Now as far as the way the car is set right now your gauge is reading correct but the the log wont. Reason be is that your gauge is right now set to p4 (0-1v) while ecmlink reads the wideband as 0-5v. So 0-1 volt to ecmlink is pig rich when it is looking for 0-5.

daplatano91 said:

Ok if you want to log the uego then you need to set it to p0 as I told you before. Also you will need to set your o2 pin to one of the 5 or 6 choices of aem wideband (not all of them work so you will need to try them all to see which gets you the best result). Also you will need to turn on narrowband simulation and lock o2 voltage.

Now as far as the way the car is set right now your gauge is reading correct but the the log wont. Reason be is that your gauge is right now set to p4 (0-1v) while ecmlink reads the wideband as 0-5v. So 0-1 volt to ecmlink is pig rich when it is looking for 0-5.

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Could I get you to go into detail about the Bolded bit of information above? I recently reverted from using NB02 simulation and installed a stand alone NB02. During the time that I had NB02 Simulation setup, if I locked the 02 then the vehicle would run terrible and wouldn't cycle as it should. Unlocking it was the ticket for me. Just looking for education, is all.

daplatano91 said:

...and lock o2 voltage.

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This is completely wrong, if you lock the o2 voltage you won't go into closed loop because the front o2 sensor signal won't cycle.

^ is 100 % correct. Just went out and checked how I have the car set. I don't know where my head was when I was typing that part earlier.