After being ready to sell this toy i decided to give it one last try. In the past few days after tons of research and asking question i finally figured out a lot of the crap that was wrong with my tunning however also wrong with all the 99-00 wiring.
Before you start taring up the miata fix the wiring on the harness.
It appears that the unit it self comes with a mixed up set of wires. These wires allow the stock ecu to control the idle control valve. If you want the adaptronic to control idle then don't worry about the harness.
This is the basic harness. First move the plugs from the 420 to Factory
Next looking at the middle (smallest) plug take the 3rd wire and mark it with one color marker. Then mark the corner one with a different marker. These are the 2 you need to switch.
How to actually switch them is look at the bottom of the plug, you'll find a little door looking piece. Using a small watch screw driver pull it out. It comes out about 1/16th of an inch NOT all the way out. Next look from the front of the connector where all the little holes are. There is a plastic piece that you have to lift up for the pin to pull out from the back of the connector.
After the repair it will look like this.
If you haven't bought a temp sensor yet get one and get the plug welded to your intake piping on the throttle body side of your intercooler.
Here's your plug...aluminum or steel depends on your piping.
Here is your temp sensor
Heres my solution.
Take a hot glue gun and spread it all over the connectors and the board to ensure it doesnt short out anywhere like in my first pic.
Now time for the fun part.
Pull the crappy plastic sensor off. You can either cut or strip the wires. Polarity doesnt matter so wire away.
Stock ecu can also use this sensor just in case you gotta switch ecus for emissions.
Next unplug the stock MAF wire the MAP sensor per Stains instruction. Long story short 2 wires go to the throttle position sensor and the last one goes to the wires that went to the stock MAF sensor.
Adaptronic Install Instructions for an NB
You can now remove the MAF and toss the filter directly on the piping.
Save the maf for emissions if required...
Now on the inside of the car pull the cover on the bottom of the steering wheel. Unplug the 3 plugs going to the stock ecu and plug them in the adaptronic harness. Plug the output plugs from the harness to the stock ecu.
The adaptronic ECU can be mounted several ways. The way i found most comfortable is to toss the ecu on top of the cover you took off a second ago. I used a towel to ensure the ecu doesnt knock against it. On my pic you can see whoever installed the alarm made a mess. Yours will be a lot cleaner if its factory.
On my plug the wires from the left are the 4 from the harness. The ones on the right are from my LC1 and the serial plug for the laptop. I found that i have to put the serial plugs first and lift those up into position and then the left side.
Toss the cover back on.
The LC1 has 2 plugs. One named IN and the other one named OUT. The serial wire goes to the adaptronic unit goes in the OUT plug, the terminator plug goes in the IN.
Plug the ecu into your computer (DO NOT START YET)
Download the newest software.
You want the bottom 420c download not the 440.
Select and e420c Latest Download (version 10.000)
Install the download.
Double click on the Launch Wari.
Go to the update firmware screen, and then turn the key to the on position (don't start yet). It should now show a serial number and say its ready. Go to whatever drive is your main hard drive, go to program files, go to adaptronic engine management, wari and it should be in there E420C_V10.000. Then, click program. After it programs, click verify. After that click reset ECU.
Exit out of wari and click to Launch wari again. It should automatically start loading your ecu data. Wait for it to load 2-3 mins... Then go to open and open my map. It will ask you if you want to over write the settings on the ecu.. yes you do. This map is not 100% configured however its good enough to get you started.
Before you begin tunning configure your TPS, go to analogue calibrations. click on Learn for the 0%, then Floor the throttle (engine off) and click learn for 100%. I'm using LC1 and the map is set for LC1 however if you're using different wideband few steps will be different and you'll need to change the settings for that. You are using a wideband right?
Cross your fingers, make sure you're in neutral, hold the clutch and turn the key. If your car starts, Cheers.
It will idle as if its cold out, then at 63degrees it will go down to ~850-900 rpm.
That's it for the install. The rest is tunning.
Few basics about the my ecu map file...
uses stock red/brown 240cc injectors
uses stock coils
uses the 3 bar map sensor
predicted map is set for boosted motor, not NA so you'll see rich values the instant you floor the gas.
the fuel map is only roughly tuned up to about 5k rpm 20-100kpa.