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Old 06-23-2009, 04:45 PM   #1
benw
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Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
1998 swapped
Forester L

Default anyone using the WB02 on the Tuna to simulate a narrowband signal?

Like the title states, I have a UTEC and Tuna that I am preparing to install now that I have some time.

Conveniently, my rear O2 went out. Does the Tuna WB02 have a wire to simulate narrowband output?

Car is an 05 STI and is fully tuned on the stock ECU as well, so I must have the rear O2 for fuel trim purposes.

Thanks!
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Old 06-24-2009, 09:50 AM   #2
crampfan
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Member#: 74321
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: clarksville AR
Vehicle:
2004 wrx wag
black UTEC stg 4

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I'm not really sure what you are asking. the rear O2 is used basically to check if the cat is working. it's not used for fuel trim at all. the turbo XS tuner uses it's own dedicated "wide band" O2 sensor, and is not used for anything other than AFR's for logging. There is no wire that will do what I think you are trying to do.
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Old 06-24-2009, 09:58 AM   #3
STIBungy
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On the STI, it is.

I have a Zeitronix in my car and I use the narrowband output to signal the rear O2 and it works great.

Quote:
Originally Posted by crampfan View Post
I'm not really sure what you are asking. the rear O2 is used basically to check if the cat is working. it's not used for fuel trim at all. the turbo XS tuner uses it's own dedicated "wide band" O2 sensor, and is not used for anything other than AFR's for logging. There is no wire that will do what I think you are trying to do.
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Old 06-24-2009, 01:02 PM   #4
benw
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Join Date: Dec 2005
Location: Oklahoma City
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1998 swapped
Forester L

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Quote:
Originally Posted by crampfan View Post
I'm not really sure what you are asking. the rear O2 is used basically to check if the cat is working. it's not used for fuel trim at all. the turbo XS tuner uses it's own dedicated "wide band" O2 sensor, and is not used for anything other than AFR's for logging. There is no wire that will do what I think you are trying to do.
32-bit ECUs use the rear O2 for fuel trims. Your car has a 16-bit ECU and does not work this way.

Many wideband sensors feature a narrowband output so you can install them in place of a rear O2 and have both wideband logging and narrowband output so that the factory O2 logic remains intact.

Are you saying that the O2 sensor for the Tuna doesn't have a wire like this? If so I appreciate the feedback.
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Old 06-24-2009, 05:53 PM   #5
crampfan
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Join Date: Nov 2004
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Location: clarksville AR
Vehicle:
2004 wrx wag
black UTEC stg 4

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I'm using the tuner pro (it's about 5 yrs old) and I'm positive mine does not have this wire. you might want to give turboxs a call.
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