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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Wed Apr 16, 2014 6:11 pm 
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Joined: Thu Aug 03, 2006 10:40 am
Posts: 1901
i gotta do this with my txs tuner pro.

tired of having two usb dongles...


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Thu Jul 17, 2014 4:16 pm 
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Newbie

Joined: Thu Jul 17, 2014 4:14 pm
Posts: 1
Does this work with the Carberry ROM? I hooked the 5V output of my AEM wideband into the LH TGV input on the ECU to try and log it. But when connected to the car RomRaider does not show any TGV logging options. My tuner tried all of the code suggestions in the thread, but nothing would show up. Any ideas?


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Fri Jul 18, 2014 10:41 am 
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Joined: Thu Aug 03, 2006 10:40 am
Posts: 1901
xluben wrote:
Does this work with the Carberry ROM? I hooked the 5V output of my AEM wideband into the LH TGV input on the ECU to try and log it. But when connected to the car RomRaider does not show any TGV logging options. My tuner tried all of the code suggestions in the thread, but nothing would show up. Any ideas?


that base rom never had TGVs.

that said, iirc someone mentioned they might be able to pull out the sensor voltage through the logger. it's beyond my ken.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Fri Jul 18, 2014 8:51 pm 
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Newbie

Joined: Tue Jan 27, 2009 4:45 pm
Posts: 50
You could try logging the raw ADC ram locations.

If I had a 16 bit car I would try it.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Sun Aug 31, 2014 2:39 pm 
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Joined: Mon Mar 24, 2008 5:54 pm
Posts: 111
Hey Dudes, got a question on this:

I used this method to log my AEM wideband 02 using expr="x/50*2.375+7.3125", which is what is listed in the AEM manual for the conversion from volts to AFR.

I logged a bunch of data and compared the logged wideband ARF to the stock O2 sensor for voltages up to 2.66 volts. There was some difference between the values and the best way to make the wideband match the stock sensor for closed loop fueling is to use

expr="x/50*2.588+7.3125"

Do you guys think this test is valid and I should be using the updated equation for afr conversion or should I use the AEM recommended expression?

Thanks
-BN


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Mon Aug 17, 2015 3:58 am 
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RomRaider Donator

Joined: Sun Sep 20, 2009 12:39 am
Posts: 210
Location: Lost
Did anyone ever figure out a female 5-pin connector we could use to plug into the stock Subaru harness?


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Mon Aug 31, 2015 12:36 am 
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Joined: Thu Jan 09, 2014 6:17 pm
Posts: 392
Get an obd extension. Splice an unused line. Log adc. That's how I do it. Works perfect.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Fri Jan 15, 2016 1:10 am 
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Experienced

Joined: Mon Jun 01, 2015 9:15 pm
Posts: 101
Location: Albuquerque New Mexico
Kind of an odd question but is there a way to change the rom to reference the tgv sensor voltage that you are inputting the wb02 reading to make its afr calculations from instead of the oem mA reading?

_________________
2001 RS 2.5 w/ 2002 harness and dash swap 2001 jdm ej205 w/avcs


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Mon Jan 18, 2016 11:59 am 
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Experienced

Joined: Thu Dec 18, 2014 6:31 pm
Posts: 699
Location: oregon
I just installed an innovate LC2. For ease of routing I used power and signal from the rear o2 harness. I know it may not jive with the proposed original thread title, but still relative to logging VOUT. I changed the logger definition to reflect the output as gas AFR.

I'm using the latest carberry logger if it matters.

VOUT * 3.008 + 7.35 = AFR
0v = 7.35, 5v = 22.39, stock innovate scaling

Code:
<ecuparam id="E179" name="Rear O2 Volts Direct" desc="">
                    <ecu id="3D04EA4605">
                        <address length="2">0x21760</address>
                    </ecu>
                    <conversions>
                        <conversion units="V" expr="x*5/1023" format="0.00" />
                    </conversions>
</ecuparam>


to

Code:
<ecuparam id="E179" name="Wideband AFR" desc="">
                    <ecu id="3D04EA4605">
                        <address length="2">0x21760</address>
                    </ecu>
                    <conversions>
                        <conversion units="AFR" expr="(x*5/1023)*3.008+7.35" format="0.00" />
                    </conversions>
</ecuparam>

_________________
'03 USDM WRX - EJ205/TD04/FMIC/SD - 2.72 g/rev @ 3950 rpm and 237 g/s @ 6100 rpm


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Tue Mar 08, 2016 9:36 pm 
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Newbie

Joined: Tue Mar 08, 2016 8:40 pm
Posts: 1
hey guys, this thread is awesome. lots of good info here.

**edit**
Found what I was looking for, the service manual sure doesn't make it easy to dig through wiring diagrams.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Wed Mar 16, 2016 2:43 pm 
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Experienced

Joined: Mon Jun 01, 2015 9:15 pm
Posts: 101
Location: Albuquerque New Mexico
No it doesn't! I sat there and thought about the wiring for probably 30 mins before I decided what I came up with was right.

_________________
2001 RS 2.5 w/ 2002 harness and dash swap 2001 jdm ej205 w/avcs


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Tue Mar 29, 2016 1:05 am 
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RomRaider Donator

Joined: Sun Sep 20, 2009 12:39 am
Posts: 210
Location: Lost
Curious if anyone has connected a two-wire sensor like a K-type EGT probe or typical IAT sensor via the TGV wiring.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Tue Mar 29, 2016 5:00 am 
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Senior Member

Joined: Sat Feb 12, 2011 7:27 pm
Posts: 1902
Location: Northern NSW
redwagon wrote:
Curious if anyone has connected a two-wire sensor like a K-type EGT probe or typical IAT sensor via the TGV wiring.


GM AC-Delco IAT sensor no issues

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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Sat May 06, 2017 6:24 pm 
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Newbie

Joined: Mon Apr 24, 2017 4:32 pm
Posts: 23
im trying this with an AEM uego and carberry rom running on a jdm wrx ecu 22611AH000. i had to go all the way down the ecu parameters and ended up with this


</ecuparam>
<ecuparam id="E180" name="TGV WIDEBAND Right" desc="">
<ecu id="3D04EA4605">
<address length="2">0x21750</address>
</ecu>
<conversions>
<conversion units="AFR" expr="x*0.000152588+10" format="0.00" />
</conversions>

i get afr of 10 at zero volts, and afr20 at 5v which perfectly matches what the wideband should put out, when i turn the tgv sensor shaft manually. now i just need to wire up the UEGO and see if it actually reads right.


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 Post subject: Re: Wideband VOUT logging via TGV position sensor input
PostPosted: Sat May 06, 2017 9:08 pm 
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Newbie

Joined: Mon Apr 24, 2017 4:32 pm
Posts: 23
just did a quick bodge wire and it works perfect! cant wait to do a proper wiring install. i have the serial to usb thing and it sucks... this works with fast polling!


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