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-   -   MS2 won't start. (https://www.miataturbo.net/megasquirt-18/ms2-wont-start-59058/)

blaen99 07-13-2011 12:42 AM


Originally Posted by curly (Post 748577)
Oh shit, you're actually on my coast, who knew.

Hey, I'm on the Right coast, doncha know?


Most likely CAS wiring related, if the stock ECU works, the MS is apparently not telling the coils to fire, either between the MS->CAS connection, or CAS->coils connection. Forget how to check, ask the wise(r) ones.
So I am down to needing to check the MS->CAS and/or CAS->coils to sort this out? Why would the stock ECU be fine but not the MS?

http://img155.imageshack.us/img155/4330/dscn1150oq.jpg

This is how I had the spark plugs btw.

miatauser884 07-13-2011 08:49 AM

Do you know for sure that your trigger angle offset in is correct for the current CAS position?

Braineack 07-13-2011 08:55 AM

I know what his issue is, I sent him PM. It's hardware related.

blaen99 07-13-2011 12:37 PM


Originally Posted by Braineack (Post 748659)
I know what his issue is, I sent him PM. It's hardware related.

And it's fixed now. Brainy made a boo-boo!

Braineack 07-13-2011 12:38 PM

unpossible. I made a solution!

Reverant 07-13-2011 12:44 PM

We all make mistakes, the important thing is to minimize them as much as possible and to be there after the sale to make it right with least possible fuss. Out of curiosity, what was the actual problem?

Braineack 07-13-2011 12:47 PM

I replaced his spark output pullups from 1K to 270ohm while I had it handy. I put the "pull-up" on the wrong pins.

Been a while...

blaen99 07-13-2011 12:49 PM

Hey, Brain's been awesome to deal with the whole time. I got no complaints ;). I'm just amused that Brainy made a boo-boo that I was able to fix (I'm not the best at soldering when it comes to PCBs.)

blaen99 07-13-2011 06:48 PM

And for a true wtf moment....

Brain's basemap, except for at idle, is smoother than the stock ECU from what I was experiencing today.

except for idle
except for idle
except for idle
except for idle
except for idle

:facepalm: Any quick tips on closed loop PWM idle guys that I won't get from searching/googling?

Braineack 07-13-2011 06:52 PM

(zack morris's phone)

try min max duty off 25 62%. 700 2500 min max rpm. And maybe 40 20 10 for the pid


There\'s a good ms2ms3 idle tuning thread that popped up like two days ago that I wrote a how to in

blaen99 07-13-2011 07:06 PM

:awesome: Thanks Brain!

Braineack 07-14-2011 09:09 AM

https://www.miataturbo.net/showthrea...highlight=idle


fwiw, the map you posted was using warm-up mode only, meaning that it was only controlling the idle to a specific duty cycle based on coolant temp.


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