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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 02:50
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http://www.megasquirt2.com/PWC/
the schematics are preliminary, they completed diagrams, and group buys for the boards will be mid to late this year.
Cya, Stewart
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Location:
Terrigal
Registered:
May 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 03:48
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On this topic.. Has anyone had any experience with Techedge's units? Seem well priced, either DIY or prebuilt. Can interface to PDA's/laptops which I think is a great feature and has logging abilities.
http://wbo2.com/
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Location:
Brisbane
Registered:
February 2003
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 04:39
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| oldcorollas wrote on Wed, 03 March 2004 14:02 |
<snip>
i have faith in Bowling and Grippo tho  and it's open source, so you will be able to make your own board and program your own processors if you so wish.
<snip rest>
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and i can vouch for their ease-of-building - my two units both worked first time when plugged into the simulator (recreates outputs from TPS, CLT, IAT, O2 & RPM) and my PC.
if you do go this way, the GB are much cheaper than trying to import everything yourself.
if there's someone in BNE that wants to loan one to try on their Toy, PM me off-list.
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 08:50
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doesnt the motec m880 have this stock?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 11:43
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motec M880? LOL 
yes, there is an option that yuu can add on from the M4 up to control either the NTK L1H1 and Bosch LSU4 sensors. IF you are already paying the 2.5-3K entry fee
if you have a MoTec, you would not be considering this anywaY 
what you seem to fail to recognise is that the L1H1 sensors are around US$300+.
you can get LSU4's from a particular source for US$30.
have a look at the prices on www.CAPA.com.au
the controlling board for this will be under $100 US, rumours of half that (solder yourself of course)
the UMS it will be connected to when it is released will cost between 100-150 US and will have features that currently you can only dream of (how many MoTecs can you cascade together with CANbus?? hmmmm how would you like 48 completely programmable outputs, fuel, ignition, pwm, stepper, slow load etc etc, auto box shifter control, boost control...)
for the unitiated, the info first posted is the tip of the iceberg, which, if they are on the ball, would lead them to more interesting projects
but this was only intended to give some background info on wideband sensors....since many people don't understand how they work or why they need driver hardware.... and it is generally a pretty secretive affair (or how else would BLIT$ charge you a grand or two for a lamda meter?)
Cya, Stewart
[Updated on: Wed, 03 March 2004 12:07]
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 11:50
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it was simply a question, which was answered.
thanks 
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 12:13
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no wuckers..
keep in mind that the Bosch LSM-11 that MoTec (and others) call a "wide band" is not actually a wide band.. it's a heated narrow band that is manufactured to higher tolerances, and is factory tested to comply to toleranced response curve. it's better than a normal narrow band, but is not wide band.. more like "wide range" sensor.. it's used for the Silicon Chip O2 meter, and some analytical devices.
the NTK L1H1 and the Boch LSU4 are TRUE "widebands" and can give true lambda output, with the correct nernst cell driver circuitry
anyhoo, have a good long read of Bruces work.... it's abotu time things like this became open source and stuck it to the manufacturers 
Cya, Stewart
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Location:
Montrose, VIC
Registered:
May 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Wed, 03 March 2004 22:56
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I like it... I've been trying to find stuff on wide band sensors for a while now, always been a *little* upset at the idea of paying QUITE so much for what isn't really an overly complex circuit... 
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Location:
Brisbane - Chapel Hill
Registered:
June 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Thu, 11 March 2004 01:07
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No, its not that complex a circuit, but to test without some not so common tools, is a bit of a bother.
I just ordered the Tech Edge WB02 Kit. I'll report back just how good it is in a few weeks I suppose It uses the Bosch LSU4 True Wide Band Sensor, and im encouraged to see they arent as dear as the NTK sensor. When I originally looked into a WB kit, this was my primary concern, and the fact that a few years ago, it seemed you could only get them from America / Europe.
Esteban
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Location:
Canberra
Registered:
May 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Sun, 12 September 2004 12:21
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Sorry to drag this up so long after it went quiet, but Esteban: how did you go with the Tech Edge kit? I've been considering purchasing one of these for the last year, but havn't heard any first hand info on them.
Cheers 
Phil
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Location:
Brisbane - Chapel Hill
Registered:
June 2002
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Re: almost evrything you would want to know about how Wideband oxygen sensors work (UEGOs)
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Sun, 12 September 2004 13:12
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I havent actually finished making proper leads for the power and auxiliary inputs, so the whole unit isnt complete yet, however, it has been used to tune a 12A, an EJ22T, and two SR20Ts by my friends with no hiccups at all.
I can only recommend you get yourself one!
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). i have heard mixed feedback about the accuracy, but i thik any accuracy is better than a narrow band