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Old 11-25-2020, 11:30 PM   #1
rocketsled
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Member#: 35223
Join Date: Apr 2003
Chapter/Region: SWIC
Location: Seligman, MO
Vehicle:
2002 WRX Wagon
WR Blue

Default Which wideband?

Hey all,

I've been doing more engine swaps lately and looking to do the tuning in house with opensource. What wideband setup would you recommend? Want something I can take from car to car, accurate, reliable and won't brake the bank.
I've already got a new laptop running ecuflash, romraider, etc. So I was thinking I could just get something like this and creat a tailpipe clamp for it.
https://www.maperformance.com/products/aem-wideband-uego-air-fuel-ratio-gauge-30-4110?variant=38727865539&gclid=CjwKCAiAnvj9BRA4Eiw AuUMDf3W8UM_TT7x70hbJwtd8i4w-W5Z7IeSUbLLiSZLHo5IKcH-z8OoS_hoCXx4QAvD_BwE
Some have suggested innovate lm2 but do I really need all the stuff?
If anyone here has built there own little tuning kit I'd love to here about it. Pros /Cons etc...

Thanks!
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Old 11-26-2020, 06:37 AM   #2
benflynn
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Member#: 515308
Join Date: Jun 2020
Default

I like innovative lm1 lm2
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Old 12-03-2020, 04:57 AM   #3
alexmartynyuk
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Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
open source tuning subaru

Default

I have been using aem uego for years. Works fine with romraider and evoscan and no free air calibration. I would be careful using a wideband in the tail pipe as being that far back the reading does get altered a bit.
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Old 12-11-2020, 05:55 AM   #4
pcampbell
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Member#: 437670
Join Date: Jan 2016
Location: VT
Vehicle:
2005 2.5 SC OB

Default

Aem is fine. The sensors themselves will die so get one with affordable replacements.
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Old 12-31-2020, 03:54 PM   #5
riksk
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Member#: 518114
Join Date: Aug 2020
Chapter/Region: International
Location: BR
Vehicle:
11 WRX
Satin White Pearl

Default

I'm running Fueltech's nano WB-02

https://www.fueltech.net/products/wb-o2-nano

It was very cheap comparing to AEM, Innovate and others.

Also it's not a gauge style, that's another reason I got it :P very small so you can hide it on the dash however you like it.
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Old 01-01-2021, 08:19 PM   #6
Scargod
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Member#: 260314
Join Date: Oct 2010
Chapter/Region: NESIC
Location: S central CT, New England
Vehicle:
2007 STI
silver gray metallic

Default Isn't the stock, four-pin sensor "wide band"?

I'm really confused now. I put a Bosch 17025 Oxygen Sensor in my race car (added a bung) and the tuner plugged into that when tuning, yet I've had two other Subaru STI's tuned without any aftermarket oxygen sensor.
A new tuner I'd like to try says my 2009 Forester XT must have a wide band oxygen sensor for him to tune it. What I read in the FSM and elsewhere states that the stock sensor is wide band. I think that that mine is though it has only four pins, unlike my Bosch, which has six pins.
At what point did Subaru go to a wide band sensor? Seems like an odd statement from the tuner.
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Old 01-02-2021, 08:12 AM   #7
pcampbell
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Join Date: Jan 2016
Location: VT
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2005 2.5 SC OB

Default Which wideband?

Most tuners will use their own wideband positioned at your tail pipe. The stock front afr sensors are good but only to about 11:1.
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Old 01-05-2021, 03:22 PM   #8
kharmicresonance
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Member#: 461898
Join Date: Jan 2017
Chapter/Region: MWSOC
Location: Ohio
Vehicle:
2004 Forester XT MT
01G

Default

@Scargod The real answer has been a long running internet forum battle. The actual p/n does lead to a true wideband sensor. However, the general consensus is that due to exhaust pressure at the stock location, it skews very quickly and ends up providing "real" afr only within a smaller range that is roughly equivalent to a "narrowband" sensor.

Some tuners are ok with that if the build is not pushing crazy boost numbers. Other tuners are trying to be as safe as possible and insist on aftermarket sensors. Most aftermarket are now using the Bosch LSU4.9 now iirc, with a few exceptions providing Denso.

Personally I have a SpartanII with Bosch LSU4.9 and have had no problems so far.
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Old 01-06-2021, 03:11 AM   #9
sebastian323
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Chapter/Region: SCIC
Location: California
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2006 WRX
Gray

Default

I have an AEM UEGO, and it works pretty well. I can plug it into my laptop via a little adapter and add that data line to my log in romRaider, as others mentioned. i had the bung welded onto my downpipe.
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