Greetings!
I have been planning to get a speeduino v0.4, with soldering it on by my self.
I am quite new to this, so I found a lot of new stuff I never heard off, but that just raises more questions.
If someone have some spare time to help me, that would be greatly appreciated!

(I have a miata NB 1.6L)

First question, do I require new or replacement sensors?
Second, if I solder an adapter on the speeduino, would I then be able to simple just plug in the old plugs in and voila done? or are there other stuff I have to connect?
I see CLT, IAT, TPS, not sure what those are and not sure how they are connected, but do I need to run a wire? or will it be able to just be soldered on the adapter?

My thoughts for it in general is:
Solder all the parts on the speeduino, attach an arduino mega, solder an alternator controller for miata, solder an adapter to connect to the lines and then connect an LSU 4.9, would that be everything? Do I need other items?

so what I thought what I need to buy is:
Speeduino,
Arduino mega,
breakout board adapter,
alternator adapter,
wideband sensor.

Is that everything?
Thank you very much!
Here is the adapter I meant:
https://www.tindie.com/products/loop...zda-mx5-miata/

 

CLT = Coolant temperature sensor
IAT = Idle air temperature sensor
TPS = Trottle position sensor

I am by far no expert on soldering a speeduino, however, soldering the mentioned adapter and connecting the pins correctly should in theory connect all the pins to the right sensors. As for the wideband. Apart from the wideband sensor itself you still need a controller to handle the signal output. Referring to this: Kontroler LSU 4.9 Speeduino - Alex Engineering

 

SpeedyEFI has a PNP Kit that likely has all the items that you may be able to assemble without needed to assemble the entire board assembly. Of course, if that is what you want to do then this is a great learning experience. To be honest, after you get all the sensor kit and the pin headers, case, and fiddle with all the resistor values and debug the whole assembly --- I would recommend chatting with the SpeedEFI guys and have them see if they have an assembly for you that meets your budget.

https://speedyefi.com/product/miata-...-and-play-kit/
Alternator Control: https://speedyefi.com/product/99-05-...control-board/

You'll need a BMW style vTPS sensor BMW part 13-63-1-721-456
And a GM Open Element IAT Sensor

 

Im not sure a na6 PnP kit would play nice with an nb6. Have not tried it but its just a hunch.

Your stock TPS should work fine as well as your stock IAT before modifying your intake. With a modified/custom intake, codyrats suggestion should be fine. My recommendation is to get a NipponDenso B to EV1 adapter for the IAT to connect to your existing wiring harness.