Hooking Uego Up With Datalogger Possible?

[Chadillac2000]

Just as title asked, I just ordered a aem uego gauge+wideband o2 and i was wondering if there was some way i could hook this up to my digital tuning pocketlogger to tune that way? thanks

 

[Raph]

maybe???? it has its own logging capabilities like the LM1 or Zeitronix unit has.*com port on laptop).then youll only need your pocket logger to see timing and knock.. (obd connector)


im pretty sure it would have the same features as the the LM1 and Zeitronix(logging via laptop) .. you should be fine

 

[Chadillac2000]

I understand that, i was just wanting to log it so i could see a/f ratio directly related to rpms, i just wasnt sure if i needed any kind of new software or if it would even hook up at all, because after researching on the aem forums i know it is possible to run the 232 port to a laptop through hyperterminal and see a read out of the a/f's but not sure if it shows rpm with this program, and when tuning with an afc it would be nice to be able to see both

 

[spyderturbo007]

Just as title asked, I just ordered a aem uego gauge+wideband o2 and i was wondering if there was some way i could hook this up to my digital tuning pocketlogger to tune that way? thanks

Nope.....well, not really. Check out this thread I started in the pocketlogger forum:

http://www.pocketlogger.com/forum/viewtopic.php?t=511

 

[99gst_racer]

Yes, that is possible. I have my Innovate LC-1 wired up through my stock ECU and I datalog my wideband lambda voltage through my logger. I am in the process of doing a write-up right now. I'll post a link when I finish it.

 

[spyderturbo007]

Yes, that is possible. I have my Innovate LC-1 wired up through my stock ECU and I datalog my wideband lambda voltage through my logger. I am in the process of doing a write-up right now. I'll post a link when I finish it.

I didn't know that you could do that......someone report me for posting misinformation

Are you doing this by using the WB as a narrowband simulator for the ECU? If so, do you think it will be accurate? How do overcome the problem with converting the narrowband voltage to the corresponding AFR? I am guessing that the Innovate LC-1 outputs a linear relationship between voltage and AFR, because the guy from pocketlogger was saying that that is the problem with most WB's. Are you using pocketlogger software or something else.

Thanks!

 

[CanadianTSi]

Staytuned is logging is Uego through his pocketlogger.

I believe he wired the output into the ecu as the second o2 signal, then just log the 2nd o2 and you are really seeing the Wideband volts.

 

[Chadillac2000]

Staytuned is logging is Uego through his pocketlogger.

I believe he wired the output into the ecu as the second o2 signal, then just log the 2nd o2 and you are really seeing the Wideband volts.

Thats exactly what im looking for I would really be interested in seeing how he did that and the exact wiring

 

[CanadianTSi]

Thats exactly what im looking for I would really be interested in seeing how he did that and the exact wiring

You can PM him but i'm sure he just spliced the wire into the rear o2 input on the ECU.

 

[spyderturbo007]

You can PM him but i'm sure he just spliced the wire into the rear o2 input on the ECU.

That would give you a constant CEL for the catalysist efficiency, right?

So I guess you would have to perform a manual calculation to determine the right AFR based on the logged voltage....?

 

[99gst_racer]

I didn't know that you could do that......someone report me for posting misinformation

Are you doing this by using the WB as a narrowband simulator for the ECU? If so, do you think it will be accurate? How do overcome the problem with converting the narrowband voltage to the corresponding AFR? I am guessing that the Innovate LC-1 outputs a linear relationship between voltage and AFR, because the guy from pocketlogger was saying that that is the problem with most WB's. Are you using pocketlogger software or something else.

Thanks!

I too have spoke with Mike at Digital Tuning. Here's the e-mail response I got back from Mike:

"It would appear the best bet is to connect the 0-1v output (not the 0-5v) to the rear o2 input. Keep in mind that if you replace the rear o2 w/ the WB
you need to have no cat.

The reason you need the 0-1volt output instead of the 0-5v is because the way OBDII is spec'd out. It only allows us to read a little over a volt even though I'm sure the input could handle 5v, like the 1g DSMs do.

The output isn't linear, but it's pretty close. It's a lot more linear than the 0-5v output. The downside is that the 0-5v output may be a little more accurate since you are taking the same scale and spreading it across 5 volts instead of 1 volt. But for all intents, it will work fine."

Like CanadianTSi said, Staytuned (steve) has his wored up like this too. Mine is wired up just like Steve's.

That would give you a constant CEL for the catalysist efficiency, right?

Yes, my CEL is on, but Steve's is not. We can't really figure out why one and not the other though......

So I guess you would have to perform a manual calculation to determine the right AFR based on the logged voltage....?

Here is the equation that I use to convert lambda to my AFR: V = voltage in lambda.
10 + (V*2) = AFR

It seems to be extremely accurate for me and I checked it against Steve's numbers and it came out perfectly accurate.

 

[Maglin]

The actuall equasion for volts to Lambda id dependant on how the output is setup of course. Then the equasion from lambda to AFR is very complicated. And it is also fuel specific. you have to know the stioch of the fuel. Ie E10 that we get at most pumps these days has a stioch of 14.3:1 instead of the pure gas 14.7:1.

Does the UEGO have a configurable output? I have the Inovate WB and I just configure the outputs to whatever I like. But I would go with the 0-5v output and also have the resister mod on the stock rear O2. Install a toggle switch to go between the two at the ECU. That way you can tune with the WB hooked up and get a much more accurate reading, but you'll get the CEL. Then when you are done tuning just switch back to the resistor and clear the CEL. Now you are golden until next time.

 

[spyderturbo007]

I too have spoke with Mike at Digital Tuning. Here's the e-mail response I got back from Mike:

In his email he says that you can't have a cat if you decide to put the WB in the bung behind the cat.....why not? Most of the WB's used for dyno tuning go in your tailpipe.

 

[1990EclipseGSX]

In his email he says that you can't have a cat if you decide to put the WB in the bung behind the cat.....why not? Most of the WB's used for dyno tuning go in your tailpipe.

Placing the WBO2 sensor after the cat will cause leaner than reality readings. If you have a really efficient cat, the readings will be affected greatly. I imagine most WB's used for dyno tuning are placed in your tailpipe becuase it is easy. Not everybody happens to have an extra O2 sensor bung, and it would be a PITA to install/remove the sensor every time a new car got on the dyno. However, I imagine this probably effects the readings seen when a car with cats is dynoed.

 

[99gst_racer]

In his email he says that you can't have a cat if you decide to put the WB in the bung behind the cat.....why not? Most of the WB's used for dyno tuning go in your tailpipe.

Most WB manufacturers recommend it before the cat. It's more accurate there.

Quoted from AEM:
"If you run a turbocharger or plan on running leaded race fuel then you must mount the sensor at least 36 inches or more downstream of the exhaust port. (18" or more on a NA vehicle) In applications with a catalytic converter, the UEGO sensor must be mounted BEFORE the converter."

Quoted from Innovate:
"On turbo charged vehicles: Install the bung downstream from the turbo before the catalytic converter."

 

[spyderturbo007]

I had read something similar awhile back, but I wasn't sure how they could get away with dynotuning a car by putting a WBO2 in the tailpipe.

I posted on the pocketlogger form asking if the pocketlogger code could be modified to display the AFR instead of the actual voltage from the WB. I'll post up the answer when I get it.

 

[99gst_racer]

The actuall equasion for volts to Lambda id dependant on how the output is setup of course. Then the equasion from lambda to AFR is very complicated. And it is also fuel specific. you have to know the stioch of the fuel. Ie E10 that we get at most pumps these days has a stioch of 14.3:1 instead of the pure gas 14.7:1.

Does the UEGO have a configurable output?

I too am using an Innovate. I have it wired using the 0-1v output. Works great that way. I am using the factory configuration on the WB. I got my equation from a random wideband forum. It seems to be very accurate for me. I'm a little on the lean side at the top of 3rd - .90v which I calculated to equal 11.8:1.

How would I go about reconfiguring the outputs?

 

[panamarojo]

Is there a write up on this? I have an aem uego wideband that I would like hooked up to a MMCD logger. I have a 90 cali ecu.

 

[99gst_racer]

I ended up getting Link V2 shortly after my last post here. I never really tested this enough to be sure that it works properly, so I can't be confident of how well it really works any specific way. Consider any of my posts here to be theory and unfinished testing.

 

[turboglenn]

YOu should be able to hook it up to log a 0-5v signal, if you do and can export your logs to excel use this forumula to convert the 0-5v read out to actual AFR =SUM((b4/1000)*2+10) (b4 being a variable it is what i use cause in my logs the uego is in colum B and starts at row 4) so if your uego was in colum M and stated at row 2 you'd use the following =SUM((m2/1000)*2+10)

 

[panamarojo]

Cool thanks. So I should try the egrt hook up on the ecu?