Build help
#1
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
i am currently building my standalone megasquirt-I v3 for my 90 turbo (no ac or cruise). i have completed up to step #50. i am trying to verify if i am building the right components. ![Noob](https://www.miataturbo.net/images/smilies/noob.gif)
if i am reading things correct on the DIY site....i build the hall/optic/points for the tach signal, but omit the option portion of the build that "...that say to only install them if you are triggering from the negative side of the coil; you aren't - so don't."
if i build this circuit, do i skip the VR circuit portion of the build? or do i just have this all backwards?
![Noob](https://www.miataturbo.net/images/smilies/noob.gif)
if i am reading things correct on the DIY site....i build the hall/optic/points for the tach signal, but omit the option portion of the build that "...that say to only install them if you are triggering from the negative side of the coil; you aren't - so don't."
if i build this circuit, do i skip the VR circuit portion of the build? or do i just have this all backwards?
#2
Boost Pope
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/smod.png)
iTrader: (8)
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,339
Total Cats: 6,793
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
if i build this circuit, do i skip the VR circuit portion of the build? or do i just have this all backwards?
#3
Senior Member
iTrader: (4)
Join Date: Jan 2008
Location: Falls Church, VA
Posts: 1,361
Total Cats: 17
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
The easy way to figure this out is to read Brain's stickied SUPER Important Megasquirt Thread on How to make and install your own Diy MS. He has a component map in there, and if you don't see the part on that map, you don't need to install it.
#4
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
The easy way to figure this out is to read Brain's stickied SUPER Important Megasquirt Thread on How to make and install your own Diy MS. He has a component map in there, and if you don't see the part on that map, you don't need to install it.
Also, DIY's writeup is very useful as well.
#6
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
so i have gotten to the next step of testing (input construction) with my jimstim. all the pots on the jimstim seem to work along with megatune except rpm's. i have yet to do the mod for the tach input due to me missing that i would need the extra resistors in the mk-pullup mod kit.
please tell me this is why i don't have any response in megatune.
please tell me this is why i don't have any response in megatune.
Thread
Thread Starter
Forum
Replies
Last Post