AEM datalogging wire. Where does it go

[apedog]

So I read two diagrams that say to either put the white wire coming from my wideband to either the o2 sensor or the egr. I had it hooked up to the o2 wire but my gauge and dsmlink were completely off and then when I hooked up to the egr wire the car would barely even start and then die in 3 seconds.
What do I do?

 

[dsmpat95]

You set DSMLINK to read the new sensor location.

 

[jakelandry]

Set it to the rear o2 then tell dsmlink to log it. If its an aem normally aem r1 is most accurate if im not mistaken.

 

[apedog]

I dont have a rear o2 and I did set the sensor to read the wideband. Im just read I think I need an ecu buffer for the wideband to work on the egr pin.

 

[jakelandry]

Do 1g's not have rear 02's? What wideband is it?

 

[apedog]

Do 1g's not have rear 02's? What wideband is it?

Nope 1g's dont have them. Im using an AEM Uego

 

[dsmpat95]

Use your front 02 sensor to read off. Use the linear wideband setting and set Dsmlink to simulate narrowband. Use these for the wideband(AEM usually doesn't read right with the dsmlinks presets for AEM wideband.) Min volts 0, min lambda 0.69 , max volts 4.99 , max lambda 1.37.

I have been using the P0 setting on the AEM gauge.

 

[apedog]

Use your front 02 sensor to read off. Use the linear wideband setting and set Dsmlink to simulate narrowband. Use these for the wideband(AEM usually doesn't read right with the dsmlinks presets for AEM wideband.) Min volts 0, min lambda 0.69 , max volts 4.99 , max lambda 1.37.

I have been using the P0 setting on the AEM gauge.

How do I set those settings. I need like a step by step.
I had it to where the wire was to the o2 sensor wire but the readings were way off

 

[dsmpat95]

You have the pin out for your ecu?

The readings from the gauge and dsmlink were off.

 

[apedog]

You have the pin out for your ecu?

The readings from the gauge and dsmlink were off.

Yeah this one http://www.dsmlink.com/images/forums/1GECUPinout.pdf

Usually my wideband gauge will hover in between 14.0 and 15.0 most of the time but dsmlink will go from 10.0 to 11.5. Idk which one to believe

 

[dsmpat95]

Um, what do you mean?

OP said the readings were off, I'm checking if is what OP was talking about.

 

[dsmpat95]

Yeah this one http://www.dsmlink.com/images/forums/1GECUPinout.pdf

Usually my wideband gauge will hover in between 14.0 and 15.0 most of the time but dsmlink will go from 10.0 to 11.5. Idk which one to believe

Are the readings for the AEM wideband on link. Believe the gauge for now.

 

[dsmpat95]

Go to the Ecu input tab in link and select the front 02 for wideband. Above that is the pin assignment select linear wideband for your front 02 sensor assignment.

 

[dsmpat95]

Now go to your "live datalog" tab. Press your F10 button and select the linear wideband to be logged. Once you can log the value right click it and put these values in: Min volts 0, min lambda 0.69 , max volts 4.99 , max lambda 1.37. You can also rename the value to display AEMWB if needed.

Let me know if that helps.

 

[apedog]

Now go to your "live datalog" tab. Press your F10 button and select the linear wideband to be logged. Once you can log the value right click it and put these values in: Min volts 0, min lambda 0.69 , max volts 4.99 , max lambda 1.37. You can also rename the value to display AEMWB if needed.

Let me know if that helps.

Thanks man im gonna go try it today. Ill be sure to post what happens

 

[dsmpat95]

My Wideband switch point is 2.39 volts.

 

[apedog]

That worked perfectly, Thanks man!

 

[gofer]

Each sensor switch point is different, just because Pat's was 2.39v doesn't mean yours is too. You'll want an EXACT switch point and getting it is easy. A good friend of mine, banishedmunk, found that if you just unplug the o2 sensor from the gauge it sits at 14.7:1. Then you just look at the logged LinearWBVolt value when its locked at 14.7:1 and make it the front o2 sim switch point. You can do all this with the key turned to the "ON" position and connected in Link, the car doesn't have to be running.

Just remember to plug the o2 sensor back in before you start the car.

 

[dsmpat95]

Each sensor switch point is different, just because Pat's was 2.39v doesn't mean yours is too. You'll want an EXACT switch point and getting it is easy. A good friend of mine, banishedmunk, found that if you just unplug the o2 sensor from the gauge it sits at 14.7:1. Then you just look at the logged LinearWBVolt value when its locked at 14.7:1 and make it the front o2 sim switch point. You can do all this with the key turned to the "ON" position and connected in Link, the car doesn't have to be running.

Just remember to plug the o2 sensor back in before you start the car.

You are correct. I Just used the closest voltage from the AEM guide for 14.7:1.