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-   -   JAW DIY wideband controller option? (https://www.miataturbo.net/insert-bs-here-4/jaw-diy-wideband-controller-option-9416/)

Braineack 04-30-2007 10:45 PM


Originally Posted by magnamx-5 (Post 107964)
Most of us are having fits trying to get a LC1 to work much less a home made WB02 comeon guys we aren't all solder junky's here give us a breack wiring the stuff in was bad enough. :p


if i can install a LC-1 anyone can....i acutally figured it out...

iWeasel410 05-01-2007 03:27 AM

oh wow that is cool, i'm gonna order one

magnamx-5 05-01-2007 07:59 AM


Originally Posted by cjernigan (Post 107965)
Yeah takes me weeks to hook up 12v and gnd.
:) How's the car doing Richy? You get those sweet mounts yet?

The usps tracking isnt saying shit the harmonic balancer should hit today via UPS though so we shall see. So far new diff axles check, everything else is sealed or in the mail comming to me hopefully :D

neogenesis2004 05-03-2007 01:10 AM

I decided I am going to buy this and test it against my lc1. If it works out it is going to be installed inside my next MS :) and the lc1 will be gone.

cjernigan 05-03-2007 01:14 AM

Nice, I'm excited now. Makes me want to get one.

neogenesis2004 05-03-2007 01:17 AM

I figure, I already have the sensor and its only $40. SO I don't have too much to lose, and it might help someone here if it works well.

cjernigan 05-03-2007 01:19 AM

Installing it in the MS case itself would be awesome.
I want to get one to make a transportable LM-1 style Wideband. One that works off power from the cigarette lighter and some cheapo LCD panel meter gauge. Hell it would cost me a whole $100 with the radioshack case.

neogenesis2004 05-03-2007 01:22 AM

that would be pretty simple to rig up I would think. I cant order it like right now, but within a week or so I will. I am trying to have a new motor in within the next 2 weeks so I will do it the week after that happens.

cjernigan 05-03-2007 01:25 AM

http://www.mpja.com/productview.asp?product=14505+ME

Use that panel meter. It would be perfect.

neogenesis2004 05-03-2007 01:27 AM

its not THAT easy lol. You need something to control the output to that display. That would be a whole other circuit. You would be better suited to buy a digital readout af guage and just take it apart.

neogenesis2004 05-03-2007 01:30 AM

like this one at the bottom http://www.prosportgauges.com/Prospo...l%20Gauges.htm

cjernigan 05-03-2007 01:31 AM

Why is it not that easy?
To see a video of JAW working in My 1997 Jeep TJ click here. The output is being read by my voltmeter, I have programmed one of the outputs so that the output voltage is AFR/10, 1.47[volts]=14.7[AFR].

For the panel meter. Can you not just program one of the outputs similarly to what he has or:
From Innovate Motorsports Forum for panel meter:
Set 0.8V = 8AFR, 2V = 20AFR. Then use the jumper settings on the $9 panel meter to move the decimal point one position to the right. If you want the results in lambda, program 0.5V = 0.5 Lambda, 1.5V = 1.5 Lambda and leave the decimal point alone.

All of that is copy and pasted from other websites.

neogenesis2004 05-03-2007 01:36 AM

well the voltmeter has the circuitry to output numbers based on voltage readings. You could rig a volt meter to do that easily enough, but they dont run on 12v. But you could use resistors to solve that problem. The lcd display you posted is just that, an lcd display. It isnt programmed to do anything, that I see at least. What is posted with it doesn't lead me to believe it would work out of the box.

I didn't think about using a voltmeter though, that would be a cheap method. The crap one at rs is like $12 I think. You could take it apart and use it, albeit it is not that compact because you have all the excess circuitry. You might be able to find a cheap, small voltmeter on ebay that only reads voltages and not resistances, etc...

neogenesis2004 05-03-2007 01:39 AM

That lcd might work I guess, it does list at all what it does. Without specs or a datasheet I really couldnt say with any certainty.

neogenesis2004 05-03-2007 01:44 AM

here you go, perfect. http://www.web-tronics.com/led5vcogrpam.html

cjernigan 05-03-2007 02:02 AM

Think those might be the same products. Cool stuff man, now I really want to build one.

jsisco 05-03-2007 09:41 AM

I saw a cool post a while back of a guy building a bench top power supply for his electronic projects. So instead of having a 12v battery around he could just have a power supply to plug into.

Anyway what makes this relevant to what you are talking about it that he bought a $3.99 voltmeter from one of the major cheap tool stores. He took it apart and traced out where the leads were on the knob that controls the function. He soldered a wire on to always read voltage. He then cut off the bottom half of the circuit board he wasn't using. Then hooked it up permanently to the power supply so he would always have a readout for voltage.

Shouldn't be that hard and $4 isn't bad at all.

jsisco 05-06-2007 01:46 PM

I found the link to the voltmeter hack if anyone is interested how it was done.

http://www.hanssummers.com/radio/psu/index.htm

Towards the bottom of the page.

http://www.harborfreight.com/cpi/cta...emnumber=90899 ... $4.99 @ HR

2004GS 05-28-2007 08:59 PM

Bringing this back, anyone try one of these yet.

Going to get one through a group buy with the local miata club, want to run it with my megasquirt, any reviews or will I be the first?

neogenesis2004 05-28-2007 09:46 PM

looks like youll take the dive first then. I wont be buying it for another couple weeks.


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