https://www.rusefi.com/forum/viewtopic.php?f=2&t=2548&p=47684&hilit=mg+midget#p47684) and (https://www.rusefi.com/forum/viewtopic.php?f=2&t=2213&p=43616&hilit=Kswap+MR2#p43616)
I am trying to get the (https://github.com/rusefi/uaefi-NA6-adapter) functioning on said stock NA Miata.
Eventually switching to COP, DBW and getting crank shaft triggering working. To summarize the project so far, I purchased the original board on the website and found that the board design had a problem where the via's at the connection point between the UAEFI and the breakout PCB. This is documented and rectified on the GIT (https://github.com/rusefi/uaefi-NA6-adapter/issues/20).
Once that was fixed a new board from JLC solves that problem (now the current one that you can purchase). All of the components have been checked but I am still a bit confused by the documentation on the schematics. First of all JLC populated the entire board even the DNP's. Based on my understanding of the schematics (https://github.com/rusefi/uaefi-NA6-adapter/blob/main/boards/uaefi-adapter-NA-90-95-b/board/uaefi-adapter-NA-90-95-b-schematic.pdf I have now removed R48,R46,R45,R22,R25,R17,R7. I currently could not get the car to fire up. This is my first time doing rus efi with out all engine sensors (91 na miatas are really technologically dumb). Ill upload a trigger event in a couple weekends and a data log. I'm also using the default miata preset in tuner studio (controller-->Popular Vehicles--->Miata NA6. Thanks for reading! Lets get this (almost) plug and play!Statistics: Posted by Red_Two — Mon Sep 29, 2025 9:13 pm
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