Seriously thinking about getting a WB02 sensor. Since they are not cheap I would like to get the best one out there for reasonable price.

I know about these:

LM1
PLX - http://www.plxdevices.com/M-Series_productinfo.htm
Zeitronix - http://www.zeitronix.com/gb/rennlist.htm

Which one would you be suggesting I get? Do you need the display or is it not really needed?

If anyone has experience with the software between these units that would be good to know too.

Mike

 

I have the Zeitronix and am perfectly happy with it. I see no need for the display, the information is only of any use to me when I can sit down and analyze it afterwards...
On the very odd occassion that I have wanted and instantaneous AFR display, I just have the laptop on the passenger seat and the software configured to display the AFR in 4" high letters on the screen. About the only time I have had the need to do this is the first couple of times I go WOT with a new tune... The big letter are easy to see at a glance, try doing that with a little LCD display! ;-)

Ben.

 

LM1 is my vote. Good stuff if you need to go the commercial route.
The DIY WB also work very well for the price, only they're for the L1H1 sensor.
Techedge is all wrong for me and anybody that knows their history.

 

Care to elaborate?

 

I picked the ZT-2 up as part of a group buy. Nice product - though the software is kinda lame. A proprietary format for logging means you have to do a heavy handed export to a csv to view the results in any other analysis program.

This is just my WAG, but after hanging around here long enough I'd say it has something to do with making money off of someone elses hard work and generous contributions.

 

Lemme see if I can explain how things happened....

Used to be, there was no such thing as affordable WB O2 sensors. A group of talented DIY'ers decided to change this, and instead of trying to cash in on a product, do it in such a way as to make it available to everyone. The result of this effort was the DIY-WB, which was a public domained design that could be built for about $20 in parts, not including the actual sensor.

There were only two conditions, the first being that the design could not be used for commercial purposes, and secondly, that any improvements that were based on the original must also be public domained, so as to be freely available to all of us regular hobbyists.

Sound like a good thing? Yup, you bet.

Unfortunately, someone had to ruin it, by running to cash in with a ripoff copy, and that someone happened to sell their product under the name Techedge. And by having enough people support a pirated design (either knowingly or unknowingly), there's very little motivation left for other public-domain, not-for-profit, DIY hardware projects to happen. Most of us can only guess what we've lost, but I guarantee you it goes far beyond O2 sensors and so forth.

The facts to support all of the above are publicly available, for those who might wish to search.

 

Because of their past.

 

I vote for the LM-1. It can datalog 5 external inputs as well as AFR internally without having to hook up a laptop, which is cool when you are datalogging at 120 MPH. JMHO

Edit: There is nothing lower than a thief.

 

I purchased a Zeitronix ZT-2, and am extremely happy with it.

All that I needed was included in the base price. Meaning I did not have to have an add on box for RPM, MAP, etc.

easy to hook up. Works as advertised.

The software could use a little work, but it is still usable.

 

Speaking of that, does anyone know where the DIY-WB stuff went since the diy-efi.org meltdown a while back? The DIY-WB website is nothing more than a link to the mailing list signup and the FTP doesn't seem to have anything more than a JPG of a completed unit and an autocad file that doesn't covert well in visio (I don't have access to AutoCAD).

Teeleton

 

I think there are a few members reading this that might contact you off the boards if you need a board. I'm not positive though. Even if they don't the diagram is there so just get a board made or do it on a blank board with wire. Obviouslly the last option I gave would take a lot longer but not especially long since you already have pictures of the board with the traces. Radioshack has a board etching kit you could try so for like $50 you'd have a working wideband controller. Only it uses the expensive NTK sensor that goes for around $200 now. So if you're really into DIY it's still a good deal but if not, the LM-1 looks really good.
The whole DIY-WB movement was to lower the prices of the commercial units, not be a replacement .

 

I'm fairly cash strapped right now, so any money I can save by wielding my own soldering iron, the better. I have no problem putting kits together, or following a schematic and parts list. I just can't seem to get my head around the design part of things. Programming I understand, logic gates I understand, and very basic voltage/power/current equations I understand, but once you put more than a couple parts in a circuit I'm lost.

The picture on the FTP site of the completed unit is the component side, so the traces aren't shown.

Teeleton

 

Yeah, then it looks like your best bet is if somebody reads this and gets back to you. Good luck. I'd send you one but I used both of mine.

 

Sent you a Pm concerning a DIY-WB board. I bought the kit, built it, and that is it, I am thinking of just getting the LM-1 instead so I will have no use for the DIY-WB board

 

Quick reminder to the TechEdge detractors: Tech Edge has not sold anything based on the original DIY-WB for a couple of years now. That design uses the expensive NTK sensor and it trades design simplicity against a high sensor cost.

The saga of Tech Edge's involvement with the DIY-WB project is available in the archives of DIY-EFI. There are alternative points of view that are quite different to some of the views expressed in this thread.

Tech Edge continues to support DIY construction of their WBo2-DIY products (based on support for the Bosch LSU sensor) even though, now, the majority of our sales are of pre-built units to professional and industrial markets.

Peter.

 

I have been using the LM-1 from Innovate Motorsports for a little over a year now. They also sell various logging devices to go with the unit. The DIY is a good alternative with the exception of the expensive sensors.

 

What more can be said, here Peter Gargano admits that he pirated the DIY-WB design.

Case Closed. . .

RBob.

 

Check out another:

http://www.autocarparts.com/part/list/1424/

This is the best price I could find. And here's a pic of it powered up.

 

Hey remember Rbob, it's ok now since they don't sell many WB's that are based on the DIY WB because that particular product doesn't make much money now. Never mind the fact that the money they used to start their company came from the hard work of the DIY community.

I think I'm going to barf now.

 

I'll try to find pictures of mine.

for my personal car I used a TwinTech wideband I bought new off ebay for $175 with bosch sensor, It comes with a digital display but its too hard to read while driving so I bought a PLX 2 1/16th gauge.. I like the PLX gauge because it sweeps back and forth + it has a digital readout so its super easy to read.


TwinTech is a company that makes EFI components for harleys so as you can imagine this wideband unit is very very tiny. I would say its between the size of a pack of cigs and a pack of gum

 

Yes, please post pics. Can you supply contact info or link to the manufacturers?

Willie

 

Heres the company

http://www.daytona-twintec.com/

It was under buy it now for $175. I did not get the one with datalogging but I see they offer that now.

Also there are interface boxes to convert 1v to 0-5v so that you can use a regular autometer gauge.

 

hopefully this work.s

 

WILLIE ---

I've got the same WB setup as rooster433. Got it from the same folks. This is their older unit that doesn't have any data logging capabilities. However, it does have a built in 0-5v linear output that you can tap into your ECM and display as well as log the AFR it's seeing. Craig Moates helped me get that part straightened out and working (Thanks again, Craig!), and with Mark's help I got it integrated in TunerPro. I'm planning to put together a post later this week with pix, etc., for anyone who's interested.

Unfortunately, I think they discontinued selling these cheaper non-data logging units based on the L2H2/L1H1 sensors, and are now selling only higher priced setups with built in datalogging.

If anyone needs the info on where and how to plug one of these into their data stream, let me know and I'll try to get it up here as soon as I can.

 

vernw,

I'm interested in the info on how to put this data in the data stream. I'm looking a buying a AEM or Dynojet wideband. I know that with Datamaster and the DIY WB you can tap into the ECM and run the WBO2 Hac. I like the idea of having a gage, and also being able to log the A/F ratio. If i could get one of these (AEM or Dynojet) into the data stream, then i can log everything with my Datamaster. Thanks in advance.