Techedge Wideband O2 Sensor

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Old 01-26-2004, 09:05 PM
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Techedge Wideband O2 Sensor

I had purchased the Techedge Wideband O2 Sensor kit from TechEdge (in Australia). The kit cost the following (AU$):

Main Unit: $199 w/ cable
Harness: $9
Display: $70

Total: $278 = $213 US$

You have to buy a Bosch 7057 O2 sensor for $30 as well (it's an OEM VW part!).

Now... this requires complete assembly (soldering, wiring etc.). I got everything done, but had some problems. I didn't have time to debug, so I sent it into TechEdge and they charged me ~$30 to fix: One of the regulators were bad and some 'cold' solder joints (geeez - should have used more flux!).

Anyways - so for a total of about $243 (US$), you can have a complete WideBand O2 unit with display. I think this is the best deal out there and anybody interested in ANY sort of tuning for their car needs this mod. Even with the extra $30, I think its a very good deal!

TechEdge customer service is very good and they have a Yahoo! Group which is very useful as well.

I have verified the unit is working but haven't installed it - will do shortly and put some pics.

I have also asked TechEdge for a graph of the linear wideband output... could possibly rig something up to mate with an Autometer guage (looks nicer!).
Old 01-27-2004, 06:14 AM
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Now if I can just find to time to completely assemble mine...
Old 01-27-2004, 08:59 PM
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allmotor_2000...where do you mount one of these for most acurate readings?
Old 01-27-2004, 09:08 PM
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The sensor should be about 36 inches from the exhaust ports on a non-turbo application. And about the same distance from the turbine outlet on a turbo vehicle.
Old 01-27-2004, 09:19 PM
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thanks Scalbert....that would be pretty easy in my setup.
Old 01-27-2004, 09:26 PM
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this allows you to accuratly read your A/F ratio even when not at WOT???

Old 01-28-2004, 05:55 AM
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Correct...
Old 01-28-2004, 10:25 AM
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In layman's terms:

On a S/C or NA car: Mount it pretty much where the stock one goes.

On a Turbo car: Mount it 6" on the downpipe after the turbine outlet
Old 01-28-2004, 12:42 PM
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In layman's terms:

On a S/C or NA car: Mount it pretty much where the stock one goes.

On a Turbo car: Mount it 6" on the downpipe after the turbine outlet
hmmmm...my cat is attached to my turbo. I'd say my first 02 sensor is about 6" from the turbo. The second 02 is about 10 inches farther down. They are both on the cat, one on each end (i.e. pre and post cat).
Old 01-28-2004, 01:06 PM
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Originally posted by Ray Khan
hmmmm...my cat is attached to my turbo. I'd say my first 02 sensor is about 6" from the turbo. The second 02 is about 10 inches farther down. They are both on the cat, one on each end (i.e. pre and post cat).
You might be better off to use the factory location for your first sensr. You can then use the simulated narrow band output to feed to your ECU. This will replicate what the stock sensor would put out.
Old 01-28-2004, 01:28 PM
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Take the cat off... more power!
Old 01-28-2004, 01:29 PM
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Who needs the spotted owls anyway.
Old 01-28-2004, 08:17 PM
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So if I had, say, a Comptech FPR... would I need a wideband O2 to tune it properly? Or can I just guess.
Old 01-28-2004, 08:31 PM
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If you have forced induction, it would help. But on an NA car the FPR is worthless.
Old 01-28-2004, 09:35 PM
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Originally posted by scalbert
Now if I can just find to time to completely assemble mine...
I thought you had "people" to do that.
Old 01-28-2004, 09:39 PM
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Re: Techedge Wideband O2 Sensor

Originally posted by allmotor_2000
I have also asked TechEdge for a graph of the linear wideband output... could possibly rig something up to mate with an Autometer guage (looks nicer!).
That would be a great option! Keep us posted.
Old 01-28-2004, 09:46 PM
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Re: Techedge Wideband O2 Sensor

Originally posted by allmotor_2000

I have verified the unit is working but haven't installed it - will do shortly and put some pics.

Does it look like this?

Old 01-28-2004, 09:49 PM
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You might be better off to use the factory location for your first sensr. You can then use the simulated narrow band output to feed to your ECU. This will replicate what the stock sensor would put out.
cool, didn't know about the simulated narrow band...fodo for thought. This is pretty cool because there are a few tuners n the verge of releasing different types of OB2 type software that will let us alter the timing/fuel/boost tables on our current ECU software. Having the wideband 02 would be great.



Take the cat off... more power!
yeah I wish I did this all along. I still might throw the test pipe in there and free things up a little more.
Old 01-28-2004, 09:56 PM
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you should take a look at aem's new wide band uego controller. It comes w/the bosch sensor and a 52mm gauge.
Old 01-28-2004, 09:57 PM
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guy's how do I add the person's name to a quote? I thought it was

Originally Posted by person's name here
quote in here
but that doesn't seem to work for me.
Old 01-28-2004, 10:12 PM
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[QUOTE]Originally posted by Ray Khan
[B]guy's how do I add the person's name to a quote? I thought it was

Originally Posted by person's name here
quote in here


click the "quote" button in the lower right hand corner.
Old 01-29-2004, 05:55 AM
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Originally posted by ModAddict
I thought you had "people" to do that.
Cable assemblies are one thing. But when it comes to board level assembly and especially when it is on my bill I'm am bit more controlling of the construction.
Old 01-29-2004, 06:05 AM
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Originally posted by blxmjx
you should take a look at aem's new wide band uego controller. It comes w/the bosch sensor and a 52mm gauge.
I did and almost bought it. But the WBO2 unit from TechEdge costs less and has better features. There are three TC inputs, two analog inputs and an RPM input. With that and the software you can log and trend data such as A/F ratio versus RPM versus Boost, etc. Not to mention the Bosch sensor used is readily available and has a great price.
Old 01-29-2004, 08:23 AM
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Originally posted by ModAddict
click the "quote" button in the lower right hand corner.
ha....I never even noticed that there...thanks
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