Aftermarket Wideband to Rear O2 signal - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SirBrass · 02-11-2014, 04:08 PM

Quote:

Originally Posted by jamesm

I got the wrx one, non-sti. The only difference is the included bracket I believe.

It is. That's the only difference. This has the STI bracket. Not that that matters for the BRZ.

lbroskee · 02-11-2014, 04:19 PM

BTW, sorry @Sportsguy83 for the thread jacking

dont hate me

Sportsguy83 · 02-11-2014, 04:24 PM

Quote:

Originally Posted by lbroskee

BTW, sorry @Sportsguy83 for the thread jacking

dont hate me

It's all good. My build thread is more an off topic/random thoughts/chat room kind of deal this days.

lbroskee · 02-11-2014, 04:25 PM

ur build thread is the friendliest place on the dam forums

SirBrass · 02-11-2014, 04:52 PM

Now if only selling my Cobb APv2 were this easy...

Sportsguy83 · 02-11-2014, 05:11 PM

Quote:

Originally Posted by SirBrass

Now if only selling my Cobb APv2 were this easy...

local Subaru FB group should be piece of cake!

SirBrass · 02-11-2014, 05:17 PM

Nope. None of them would bite. Well, one did, but he never showed up to get it (or to pay me).

gdrider77 · 02-12-2014, 09:11 PM

This is great. So basically this takes the aftermarket wideband o2 sensor reading and feeds it into the stock ecu? As you know im running a failsafe as well, does this then mean that the failsafe will no longer read the afr? confused on that part.

Also you said its for racerom users only, so does that mean i have to upgrade my software? OR will this still work for a tune from a master tuner?

jamesm · 02-12-2014, 09:15 PM

Quote:

Originally Posted by gdrider77

This is great. So basically this takes the aftermarket wideband o2 sensor reading and feeds it into the stock ecu? As you know im running a failsafe as well, does this then mean that the failsafe will no longer read the afr? confused on that part.

Also you said its for racerom users only, so does that mean i have to upgrade my software? OR will this still work for a tune from a master tuner?

your gauge will still work as normal.. you use one of the other outputs to feed into the ecu (0-5v). your tuner would have to add a custom map to scale the output, then you'd log the result of the custom map just like you would with an ethanol content analyzer in a flexfuel setup (i.e. custom map m result or similar).

Sportsguy83 · 02-12-2014, 09:38 PM

Quote:

Originally Posted by gdrider77

This is great. So basically this takes the aftermarket wideband o2 sensor reading and feeds it into the stock ecu? As you know im running a failsafe as well, does this then mean that the failsafe will no longer read the afr? confused on that part.

Also you said its for racerom users only, so does that mean i have to upgrade my software? OR will this still work for a tune from a master tuner?

Yes, like @jamesm said. If you are tuning the car yourself, you add a custom map that reads the output of the rear O2 sensor. You would need the BRZ RaceRom upgrade from Ecutek to be able to create custom maps.

The white wire coming out of your Failsafe harness is the Wideband analog output. You would connect that to the blue rear O2 cable. You will also need to connect the brown cable to ground.

As soon as your tuner creates the map and updates your tune to RaceRom version 7, you are good to go!!

You would then log custom map X (whatever map he assigned) and it will log your exact AFR

spdbydesignchris · 02-19-2014, 02:33 AM

Are you using the rear o2 sensor ground to connect? or connecting to a chassis ground location?

Where are you wiring the 12V + switched?

gdrider77 · 02-25-2014, 07:28 PM

Gonna do this tonight....got a new tuner lined up, and dropping the car off, wish me luck!

xjohnx · 02-26-2014, 10:22 AM

Quote:

Originally Posted by spdbydesignchris

Are you using the rear o2 sensor ground to connect? or connecting to a chassis ground location?

Would like to know this too. Also, are you disconnecting the OEM rear O2 sensor harness completely and splicing in to the blue wire on that harness? Or leaving the harness connected to the o2 sensor and splicing into the blue wire?

spdbydesignchris · 02-26-2014, 10:51 AM

After seeing the AEM Uego wideband, you would be simply running the 0-5V output wire from the gauge, inside the car, to the blue wire on the rear o2 sensor.

I'm using the passenger ECU wiring harness loom grommet, making a small slit with a razor and sliding the AEM harness through. (As well as the 0-5V output wire, which will need to go into the engine bay.)

02-12-2014, 09:11 PM	#36
gdrider77 Senior Member Join Date: Oct 2012 Drives: Subaru BRZ Limited Location: Denver, CO Posts: 623 Thanks: 243 Thanked 263 Times in 157 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	This is great. So basically this takes the aftermarket wideband o2 sensor reading and feeds it into the stock ecu? As you know im running a failsafe as well, does this then mean that the failsafe will no longer read the afr? confused on that part. Also you said its for racerom users only, so does that mean i have to upgrade my software? OR will this still work for a tune from a master tuner? __________________

02-25-2014, 07:28 PM	#40
gdrider77 Senior Member Join Date: Oct 2012 Drives: Subaru BRZ Limited Location: Denver, CO Posts: 623 Thanks: 243 Thanked 263 Times in 157 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	Gonna do this tonight....got a new tuner lined up, and dropping the car off, wish me luck! __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
BRZ Front and Rear LED Turn Signal Bulbs	convoy	Cosmetic Modification (Interior/Exterior/Lighting)	23	11-25-2013 08:51 AM
Aftermarket Rear Diffuser	Realm	Cosmetic Modification (Interior/Exterior/Lighting)	8	05-09-2013 12:23 AM
FS: BNIB Concept Three LED Amber/White signal bulbs Front and Rear with Relay	xxscaxx	Exterior Parts (Aero, Lighting, Etc.)	10	03-27-2013 11:17 AM
DIY: front and rear LED turn signal bulbs	jjdrivesajazz	DIY (Do-It-Yourself) Guides	6	10-15-2012 10:53 PM
Innovate Wideband Air/Fuel Ratio LC-1 Wideband Kit Special Price	Titanmotorsports	Audio/Visual, Electronics, Infotainment, NAV	2	09-14-2012 01:42 PM

02-19-2014, 02:33 AM	#39
spdbydesignchris Join Date: Jan 2014 Drives: 2013 BRZ Premium Location: Oklahoma City, OK Posts: 452 Thanks: 18 Thanked 315 Times in 161 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Are you using the rear o2 sensor ground to connect? or connecting to a chassis ground location? Where are you wiring the 12V + switched?

02-26-2014, 10:51 AM	#42
spdbydesignchris Join Date: Jan 2014 Drives: 2013 BRZ Premium Location: Oklahoma City, OK Posts: 452 Thanks: 18 Thanked 315 Times in 161 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	After seeing the AEM Uego wideband, you would be simply running the 0-5V output wire from the gauge, inside the car, to the blue wire on the rear o2 sensor. I'm using the passenger ECU wiring harness loom grommet, making a small slit with a razor and sliding the AEM harness through. (As well as the 0-5V output wire, which will need to go into the engine bay.)

User Name		Remember Me?
Password