Wideband reading different gauge to computer

[Hestman]

I have ECMlink V3 full. I have An aem Uego wideband O2 sensor installed 36 inches downstream from the exhaust. I tapped in the white wire into pin 15 and assigned it to the EGR temp pin. The gauge is reading 14:7 and the computer is showing on my data log at 12:7 Its almost exactly 2 points lower no matter what rpm boost ect ect. The white wire broke so I used speaker wire and soldered it into the white wire and ran it to pin 15 the blue wire with the yellow stripe. All the solder is good. Why is it reading 2 points lower? No exhaust leaks. Just trying to figure this out. I got the speed density bundle from ECMtuning and I got the plug and play cable as well. Just trying to figure this out any help would be appreciated.

I wonder if there is a way to calibrate the uego wideband? just wanna know

 

[b00st3d4g63]

I'm curious too because mine also reads different like yours.

 

[Hestman]

Im just having a hard time tuning. This sucks. And my IAT sticks at the same temp the whole time Im driving. Wonder what all this means. Maybe someone on this site will know and can shed some light on me

 

[Dert]

Try different aem selections in the drop down, I have aem uego and have mine set to aemwidebandR1 in the dropdown and it matches up


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[ziggys95tsi]

it could be the distance from the tip of the sensor, is not in far enough and is reading with a delay and improper values. im having the same problem with an Innovate gauge.god luck

 

[Hestman]

Yeah this sucks

 

[doubleclutch99]

Im just having a hard time tuning. This sucks. And my IAT sticks at the same temp the whole time Im driving. Wonder what all this means. Maybe someone on this site will know and can shed some light on me

Did you lock the iat signal within ecm link? if you don't it will still read the same all of the time.

 

[Hestman]

Should I have the IAT signal locked? Didnt make much sense of your post

 

[DSM nOOb]

this is the only solution i could think of.

the 1G EGR temperature input and the 2G baro input have pull up/pull down resistor configurations that some sensors are not capable of driving properly. The solution to this is to "buffer" the input so that the sensor is not directly driving the ECU's input. The circuit and buffer board described below can be used for this purpose.

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buy it here

 

[Hestman]

I have a 1g. And I got ECMlinks sd bundle and also got their cord so I could just plug them into the old maf connection

Try different aem selections in the drop down, I have aem uego and have mine set to aemwidebandR1 in the dropdown and it matches up


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Im gonna try this now I hope it works

I tried the different aem sensors in the drop down box. None of them were accurate

 

[Hestman]

Well apparently I need that buffer thing. Or i can just target my a/f ratio 2 points richer so it equals out. As long as I can do pulls and keep them around 10:8 all the way through

this is the only solution i could think of.

the 1G EGR temperature input and the 2G baro input have pull up/pull down resistor configurations that some sensors are not capable of driving properly. The solution to this is to “buffer” the input so that the sensor is not directly driving the ECU's input. The circuit and buffer board described below can be used for this purpose.

You must be logged in to view this image or video.

buy it here

Yeah your right. I was getting my map sensore and IAT sensor confused with my O2. I guess I need to buy that thing and figure out how to wire it into my ecu

Only question is I dont have my O2 sensore powered or grounded through my ecu. Could I just hook the white 5 volt analog signal from the sensor to the green wire and then hook the yellow wire to the egr sensor wire which is pin 15?