Megasquirt build (Part 2)

Yesterday i found some time to continue working on my ECU: Firstly i soldered the 76 pin Denso connector to the adapter board...

...and then wired the adapter board to the main board. This is the step that gives the ECU the car specificity, so one should double check all the connections:

Followed by the addition of specific add-ons:

Then it was time to reinstall the MS2/E card and connect the unit to the computer to see what's what:

I managed to upload a firmware as well as connect to Tunerstudio and load a base map:

So i decided to mount everything in the case:

Since the car is stored during winter i will only be able to test all sensors and connections in spring when it's back on the road. Till then one has to practice patience....

Megasquirt build (Part 1)

During the holidays i was able to find some time to start building my megasquirt ECU.
It's actually a straightforward process and very easy to accomplish since board layout as well as documentation are excellent.
Starting out with the resistors and diods...

 

...working you way though transistors, capacitors, ICs...

...comparing the standard MAP sensor with the MAP Daddy 4 (right):

Installed MAP sensor:

Installed the connectors for the MS2/E board:

And finally connected it:

As of now the ECU should be able to communicate with the computer and uploaded with the firmware. I still have to connect the DENSO specific adapter board and all the car specific jumpers.
Looking very good so far and only took a few hours to get there.

A perfect Trueno Coupe at Speedhunters

Speedhuntersare featuring an unbelievably clean Trueno Coupe, definitely worth a look!

Video tip: A JDM miata tribute

Usually i wouldnt share compilations but this one is really nicely done i think...