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I am thinking of tuning this daughterboard myself with the MOSFET burner (or whatever it is called).
Are there any wideband O2 sensors that are compatible with Calumsult/Conzult/ECUTalk etc? I want to be able to plot AFR vs. RPM and other such things.
Also, what program would you use for actually editing the fuel/timing maps?
It would also be nice if this O2 sensor could turn around and be a sender for a gauge after tuning.
TIA
Im in the process of trying to do this now. I will let you know how it turns out. The AEM UEGO guage type wideband has an analog output that goes from 0-1V taht will replace the stock 02 signal going to the ECU. The instructions for the guage include a calibration table showing what voltage outputs correspond to what A/F ratio. If you know the calibration cuve you can datalog the value using calumsult and then just transform it in excel or something. I actually had a thread sort of about this a couple weeks ago. Calum chimes in about the subject, i think he used the LM-1. here is the link.
I really like the LM-1. Its simple, easy to use, but still has neat features. The price is pretty good too.
Two thumbs up to innovate for opening the interface protocol up to the public too, I've always wanted to add direct data logging to calumsult from the LM-1 but haven't ever had the freetime to do so.
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All posts by Calum in this thread are copyrighted by Calum, and cannot be edited, deleted, or copied without his express permission. calum@calumsult.com
i still dont understand why you would get the LM-1, when the Zeitronix is an amazing unit.
Zeitronix:
cheaper
replaces the stock O2 sensor
can tune where the ECU reads 14.7:1 in order to rich/lean out engine operation at partial throttle
will do RPM vs AFR graphs with included software
you can set a trigger to log data: aka if AFR goes below 10:1 or above 15:1 it will log TPS + RPM + AFR + (any 0-5v signal of yuor choice + EGT + boost (if equipped)) WILL DO THIS WITHOUT THE SCREEN OR ANYTHING ELSE HOOKED UP. Say you are driving around to work and your motor goes lean, the module that the wideband O2 sensor plugs into will beep, flash, and log for 30ish minutes.
has an aftermarket screen that displays everything that it can log (listed above)
far better looking than the LM-1
just was saying that because calum uses it on his ecu so i figure i would have goodluck on that product...im a beginner at this stuff and dont know whats better...But now that you have made a second choice i will lookinto that one as well, for me is gonna be the ablity of use...do i need to sit down and read a book for hours on how to use it or just plug and play.
So thanks for the info, oh yeah where can you buy this unit.
just was saying that because calum uses it on his ecu so i figure i would have goodluck on that product...im a beginner at this stuff and dont know whats better...But now that you have made a second choice i will lookinto that one as well, for me is gonna be the ablity of use...do i need to sit down and read a book for hours on how to use it or just plug and play.
So thanks for the info, oh yeah where can you buy this unit.
I read my post after making it, and realized that it sounded angry/disgruntled. I just wanna say that I didn't mean for it to sound that way.
Saying the Z is cheaper is a little deceptive: with the screen it is $399. I bought my LM1 several years ago for $300, I don't know what they sell for now.
The LM1 has a really neat trick that I haven't seen any other wideband do: both output voltage are fully programmable, not just preset 'wideband' and 'narrowband' outputs. This is neat because you can 'smuggle' the wideband data into a consult logger via the stock o2 sensor voltage input (simply set the LM1 for a 0 to 1V output, linear, with .5V being approx 14.7:1 AFR). You can then backout the afr/rpm in excel with a little math. Neato!
If your working with a shop see what they use. Its like anything else, if you can try a couple of different brands out and see what you like. I was intrested in a widebad purely as a tuning tool that will get used on many many different cars, not as a box that is going permanently in one car. Stuff like that matters, the LM1 sucks for a permanent install, its just too large compared to other models. Its case design is definatley outdated. When I bought my LM1 it was pretty new on the market, and it, the Z, and aus-diy were the only low cost (sub $500) options out there. Now theres all kind of choices. Cool times.
Edit: Ya know, its probably like anything else. People like what they get comfortable using. I'll probably use my LM1 until it falls apart.
If you want wideband O2 for tuning, portable to several different cars, I would get the LM-1.
If you want a system that looks awesome if you put a couple extra bucks into it later down the line, has awesome features, will plot RPM vs AFR, will accept Boost and EGT later, log both, and has the alarm/auto-log feature, get the Zeitronix. All the screen does on the Zeitronix is display information. No buttons. EVERYTHING is changed with a laptop.
This is neat because you can 'smuggle' the wideband data into a consult logger via the stock o2 sensor voltage input (simply set the LM1 for a 0 to 1V output, linear, with .5V being approx 14.7:1 AFR). You can then backout the afr/rpm in excel with a little math. Neato!
i assume thats fine to stuff up the typical non-linear o2 curve (and offsets), since you're datalogging will typically be for non-cruising conditions so it wont matter if the ecu cant use the o2 in the manner it does normally (ie, cruising mixtures will end up richer than normal)?
I have the Zeitronix Unit.. The only reason I got that is because I had a sh*t laptop that just sits in my car and that stays in my car.
Granted, if you don't have a Laptop I wouldn't buy it.. I've never tuned with that LCD screen they sell.. I love the graph interface on the Z onto the Laptop, It's almost fool proof (For me at least). DAMN easy to read.. Everything is easy on it.
-RPM-
AFR-
-Throttle-
And other options.. Lamba, EGT.... Ect...
That is what it shows u on the screen to you know what and where to Remove or add fuel..
Love the unit.
I've only heard good things about the LM-1, so even thou I've never used it i'm pretty postive it's a Great product.
But To have a Tuning Software in Calums Programs would be kick ass.
