Help, stranded and lost!
 

So I have been running my turbo 01 miata for a week now, getting it tuned in just fine. Changed the injectors today so I could add more boost and I've been driving around on auto tune all day. As I got up closer to 10 psi the engine cut out like it had the last couple days when I got it up that high. I thought it was the injectors but apparently not. So now I'm stranded, the ecu won't connect to my laptop, laptop can't find the ecu, it cranks but won't fire, when it died before I would turn it off and then it would start back up, now it's dead... It's an "ms2 enhanced 01-05 miata". Could it be corrupt firmware? Where can I find that? Any help would be appreciated. Thanks.

Update, I found firmware but when I try to dl to the ecu it won't return any data. Sent Q and got 0 bytes back. I ran troubleshooting on my port but that didn't help either. Any ideas?

I would guess there was a grounding problem somewhere and something got fried

well... so who's good with circuit boards? I don't see anything physically, I plugged it back in and didn't notice any components warm to the touch, tried connecting again and it still won't still nothing warming up. no continuity from pin 28 to pin 1 (12v-gnd)... I guess I can try to go through all of the components but I'm not super knowledgeable on that, do I need to remove some of them to test them properly? Is there someone on here who is good with that stuff and would have the time to troubleshoot my board?

Can you take upclose high quality pictures and post them here? are you sure there isnt is blown cap, they usually dome when they go bad.

Caps look good. Tested doids and transistors, they seem good. No physical damage noticeable.. Don't have an oscilloscope so I'm trying to figure out how to check the processors.

http://i68.tinypic.com/4vlaf8.jpg

http://i65.tinypic.com/2w5kpzc.jpg

http://i67.tinypic.com/25jfmdc.jpg

http://i64.tinypic.com/inbip5.jpg

http://i64.tinypic.com/1zleogx.jpg

Q19, npn, .0 on one side, .62/.64 on the other. Polarity irrelevant.

http://i65.tinypic.com/2dm589j.jpg

nevermind, pulled it and it tested good. However, on the board where it initially read 0V I have continuity even after cleaning all the solder off it. should that be the case?

so before I break my bank account... can someone confirm my situation sounds like the daughter board/cpu would be the issue with the ecu?

https://www.diyautotune.com/product/...daughterboard/

Do you have the correct voltage at the pin header where the daughter card mounts? The test pins and voltages are in the assembly guide in the manual on msextra.com. If you have correct voltage, then plug in daughter card and can't get any response, then probably daughter card issue. If the voltages don't check out, then PCB issue.

Thank you. I'll try that.

So it was the cpu! installed a new one and we're back up and running. ground looks good with full continuity. Thank you for your help. I'm not sure what caused it to die, maybe old age?

And now new issues. From what I can find it would seem my ecu initially came with unique firmware to control the extra boards in there and what not... I installed the latest ms2 firmware I could find but I lost some features in doing so. Biggest issue now though is the alternator isn't charging, which it was before just fine, I belive there's a command not being sent from the ecu but I'm not sure where to adjust that or how to fix it.

That looks like an MSLabs MS2. I know for certain time frames and versions Reverant was using custom made firmware. So you will most likely need to email him and get his firmware to reflash with.

Ok... It is, I did, waiting for a reply. There's a race tomorrow I wanted to make, is there any way to trick the alt into charging? I would imagine it's a varied command so a constant signal would just make it keep climbing in voltage output?

You can always get a 94-97 alternator. A few minor wiring changes and it'll be PNP and internally regulated.

ok, yeah, I started looking into that. I don't suppose anyone else has the firmware floating around somewhere? sucks to have to go through all that when I just need to activate an existing circuit in my ms2e. Does Reverant have an archive or website where he has his firmware saved?

Ms2 enhanced 01-05 miata
 

Anyone? There must be someone with a copy of this firmware.. It's getting to be too late here soon, two races missed because of this ecu now... Is reverent around anymore? How do you get in touch with him?

https://www.mslabs.gr/

Managed to find the website, and that's the email I contacted already, but it looks kinda dead...

http://trackspeedengineering.com is another one I came across that may have dealt with these ecu's, but they don't have the firmware apparently...

Any other ideas?

Good luck with that, I have one of his ones that need the special firmware, and he just gave me the link to the publicly available firmware rather then their special code, have had nothing but issues with it since I do not have the code for the special mods he made.

oh yeah? I think I reached him but I'm still waiting to hear back on if he has anything. would you happen to have a working link still? will it at least allow your alternator to run? or are you talking about the generic ms2 firmware I imagine... I really don't want to have to go buy another alternator. Not to mention, like you said, all the stuff that is specific to the miata and wired into the factory harness as such...

He never gave me a link to the one that mine needed, just the generic MS2 download to the publicly available, have been having idle issues since I do not have his special code to use

I was going to upload a log but it's too big. I decided to swap out the alternator and rewire, car is back up and running at least but there are some bugs to work out. I get lost sync errors, reads0 and 32, which is something about the cam not sending data? what does that mean exactly? Also, it wasn't an issue until a couple hours into tuning, the fan relay doesn't stay on. It cycles on and off quickly so the fan only kicks on for a second, my temps started climbing on the highway so I called it a night. kinda beat now, I'll see about getting a shorter and more thorough log tomorrow, hopefully you guys and look it over and give me some pointers. still don't have the correct firmware so I'm running the latest ms2 extra firmware, idk if that could cause any issues with wiring and sensor reading on my ecu...

OK, so I've come across this little feature, these are my debug packages, with the data-logs, connection issues, etc... If you can utilize a zip file... if anyone can help I would appreciate it greatly, Thank you!

and then there is this... more firmware issues.

https://www.miataturbo.net/megasquir...31-32-a-65472/

high speed logger. trying to catch a mismatch but it disconnects when i try to log it. get that "controller error: burn page failed crc check. check log for full data dump of local and controller page 5 data." popup. the engine cutout is more when i'm into about 6-7 psi, irrelevant of rpm, and I can wind it out as far as I want as long as it stays under 5 psi... also, "time" continues to count up, even after it has a disconnect. so I believe that would eliminate an ecu reset action?

Post your tune, are you sure it's not over boost protection?

The tune and data log should be in those packages, what part of the tune are you referring to? And yeah, it's not that, I have anything unnecessary turned off right now.

Post in the Reverant section of the forum,
sometime he is answering faster if posted there
https://www.miataturbo.net/ms-labs-m...ccessories-89/

well, I've been emailing with him but I guess he can't find the firmware for that ecu.