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AEM wideband/TunerProRt question

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gcihlar

10+ Year Contributor
114
1
Feb 16, 2011
Weston, Wisconsin
I understand the instructions of hooking up the wideband, power, ground then 5v source. The only step I'm lost on is hooking up the 5v source. After reading a lot, I've come up with hooking up to a 5v source is what is needed to log with wideband to which ever logging device your using.

Well if I'm understanding this correct, what should I tap into to log with TunerPrort?
 
I'm not sure what your talking about. A narrowband O2 reads 0-1v. The wide band O2 reads 0-5 volts. I'm not sure that you need a 5v source to tap into. When I did mine install, I wanted to log through DSMLink. So I tapped into a pin for the ECU. In my case I think it was pin 76 but I could be wrong.
 
I'm not sure what your talking about. A narrowband O2 reads 0-1v. The wide band O2 reads 0-5 volts. I'm not sure that you need a 5v source to tap into. When I did mine install, I wanted to log through DSMLink. So I tapped into a pin for the ECU. In my case I think it was pin 76 but I could be wrong.

http://www.dsmtuners.com/forums/articles-electrical-wiring/243242-how-install-aem-wideband.html

Now its time to wire up the 4pin harness.
- RED (Power) Connect to a 10v-18v power source.
- BLACK (Ground) Connect to a clean grounding point.
- WHITE (Analog Output) Connects to any auxiliary unit with a 0-5v input.
- BLUE (Serial Output) Connects to a RS-232 com port. (This output is optional)

step 3, sorry I guess I should have stated 0-5v instead of just 5v.

So to log on link you tapped the white wire into pin 76?
 
I always run the wideband sensor in the stock location, then cut the input from the stock narrow band, and run the wideband directly in place of it into the ecu. You can either put the rotary knob on the back of the aem unit to p04(narrowband simulation), or scale the code in the ecu to recognize 0-5v, instead of 0-1v.
 
Im not to sure how tuning pro works, i read a little bit on there website and doesnt really explain how it all works but if its similar to link you could connect it from connector C-61 pin 4 and read it from the factor o2 sensor thru there program
 
Im not to sure how tuning pro works, i read a little bit on there website and doesnt really explain how it all works but if its similar to link you could connect it from connector C-61 pin 4 and read it from the factor o2 sensor thru there program

looking at the 1g pin outs c61 is for the injectors, if im reading it right?
 
No the diagram you were looking at 61 is for the injectors which on that same pinout link you were looking at you want to use pin 4 then. I was looking at this diagram http://www.dsmlink.com/images/forums/1GECUPinout.pdf and the connector is called C-61 (which is the biggest connector) then pin 4 which should be for your oxygen sensor

ok i see sorry i miss read the chart. thank you. so just tap the white wire into that one.
 
well cut it completely so that the ecu cant read the stock narrowband and hook the white wire into pin 4 so it only reads the wideband

I see what your saying but in my search i could swear i read someone saying that, but someone chimed in stating the car would not run correctly.. of course tho i cannot find that link. I may be wrong, tho...
 
Well in theory if you just tap the wideband wire into the computer with the narrowband hooked up the logging device isnt gonna know which reading is coorect and give you a mixed/faulty read out
 
Well in theory if you just tap the wideband wire into the computer with the narrowband hooked up the logging device isnt gonna know which reading is coorect and give you a mixed/faulty read out[/QUOTE

ok so leave my o2 sensor in the location its in under the hood, install my wideband sensor in the downpipe (which is done) pull the white wire from the ecu and plug the white wire in from the wide band and all should run and be good?
 
I have logged with it already just don't like that I can't post my logs here for help. I wish there was more indepth write up on it tho as I'm new to logging. But its free so I like that

Sent from my HTC Desire HD using Tapatalk
 
Why not use something like pin 15? I'm not sure how Tuner Pro works exactly, but if it's anything like DSMLink you can basically choose your wideband input from list of stock inputs. Is this the same on tuner pro? I wouldn't advise tapping your wideband into your front O2 sensor signal wire. At least not until you have the car pretty well tuned and are ready to switch to 100% narrowband simulation. Which the AEM is horrible at doing (ask me how I know). So I would suggest looking into finding a different pin to hook the wideband into so that you can datalog and monitor your wideband while leaving the stock O2 sensor in place and functional.
 
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I have logged with it already just don't like that I can't post my logs here for help. I wish there was more indepth write up on it tho as I'm new to logging. But its free so I like that

Sent from my HTC Desire HD using Tapatalk

You can post your log files here, but first they need to be converted to a format that is acceptable for forum attachments. This is very easily done, but you and the folks who want to view the log need MS Excel to do so.

Open TunerPro, load your ADX, and XDL(log file).

Click Acquisition > Export Log File

Select the items to export by clicking the "Selective Export" check box, or leave it unchecked and export them all.

Continue to the "Export File Type" and select Comma-Seperated Value (csv).

Click Export.

Name and save the file.

Do you have and EPROM ECU, Ostrich, or chip burner? If you connect the WB analog out wire to the ECU at pin 4, then you will need to change the code to accept the difference between the NB and WB signals.

If you haven't already, check out this thread, as it has some of the best info available concerning stock to native WB.

If you are just seeking the ability to log you WB O2 data in conjunction with the other ECU parameters, then I would suggest getting a circuit buffer like ECMTuning sells, leave the NB O2 intact, connect the WB analog output signal to the EGR input, and log via TMO. TMO is also free, and has a Excel format export feature.

Don't get me wrong, TunerPro is great for logging/editing ROM, but if you're not into writing or customizing the definition files for you specific needs, then it may not be the best fit for you.

Good Luck!
 
I have logged with it already just don't like that I can't post my logs here for help. I wish there was more indepth write up on it tho as I'm new to logging. But its free so I like that

Sent from my HTC Desire HD using Tapatalk

Im open to suggestions... . what exactly do you want to be more in depth about?

Im sure Chris or someone can add some extensions to the list of files we are able to upload. they have in the past...
 
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