You're the man Jesse! Thanks.


I just ordered it from jet. $125.25 after shipping. I'll update this thread after I get this one installed.

did you not just see my recent comparison post?

https://www.miataturbo.net/ecus-tuni...3/#post1316439

I hadn't but I went with the MTX-L.

I have everything hooked up and calibrated, the MTX is functioning perfect, and I spliced into the wires that you showed me braineack.

Quick question, when I hook up the usb cable from the MS3 to my laptop, and click create new project in tuner studio, it can't detect the ECU firmware. I had the key in the accessories on position, should it be different?

Should I be using a serial cable? or manually programming this?


The guy I bought the ECU from said he loaded a stock tune on the ECU, but added in the lc-1 wideband. When I tried turning on the car, it turns on but won't stay on. Any thoughts on how I can get into the actual tuning of this thing?

so the car cranks, combusts and starts, but it wont maintain idle and dies immediately?

Correct.

does your laptop have the right drivers loaded?

installed the drivers right now, and reading through the manuals on DIYAutoTune.

After installing the drivers, tuner studio read the firmware just fine. Now I just need to figure out how to get the car to stay on lol.

I'm as far as setting it up with a wideband, and now I am on the dashboard.
I downloaded the basemap from https://www.diyautotune.com/support/...5-mazda-miata/, I do have the IAT though, and have removed the MAF. I tried to load the base tune, but I keep getting a message that signatures don't match.

screenshot of the message you are getting? it may be nothing to worry about

https://www.miataturbo.net/attachmen...ine=1459894090
After I load it anyway it says I have 95 warnings.

Do I just have the warning because I haven't set anything up in tunerstudio, or should I be using a different base tune?

Brain is the expert on this matter but from what i understand those warnings are fine and not a problem.

Alright I'm off today, I'm gonna try the ms3 pro base tune, and ignore the warning and set it up according to the DIYAutoTune instructions.

I'll report back If I run into any problems.

youll get a ton of errors between a MS3-Pro and MS3x tune. All the names of the inputs/outputs are different.

Should I use a different basetune or will I be fine to ignore them?

you should be fine, but id go through all major settings and make sure they match up, especially all the inputs and outputs.

So I took my timing light down to the car, hooked it up and let it sit there. Plugged in my laptop, and burned the stock MS3Pro tune from MegaSquirtPNP by DIYAutoTune.com I ignored the warnings and followed what little setup instructions I could find.

I unlocked my tables, and then setup my thermistor table for the GM AIT.
I then went to my ignition timing and set fixed advance to fixed timing and made sure it was at 10. I burned it to the controller.

Now my car does nothing when the key is on and I press the the push button start. All of my accessories are on though so I know my battery isn't dead lol. What settings do I need to check?

Is there a good write-up for this that I just can't seem to find?

Even when I try other maps, nothing happens when I push my engine start button. Before I accepted this tune, my car would crank, but die, i feel like I'm going backwards lol.

why dont you just ask me for a basemap specific for the unit i built?

I personally would have kept the loaded tune and just made sure all the setting made sense for your install.

You know that's a great idea. I just wanted to gain the knowledge myself as much as I could. This forum is a great help I just want to be able to ask intelligent questions.

I did get my car to start, but it's running only slightly better. I ran a data log, but I'd rather use a tune that you know works.

So if you have one, I'd love one lol.