Yeah it doesn't make much sense to run simultaneously because speeduino has the outputs to run alternating
For someone needing, the base tune is here:
https://drive.google.com/open?id=1CANHN ... yYi3wFoilM
I also got the rev1.2 board done. I will probaply do some adjustments to that still, but it's here to check out:
https://easyeda.com/pazi88/speeduino-v0 ... m52-rev1-2
I did move the MAP sensor and Mega so that those do not require that big holes cut into the case. I also added the baro sensor and it's wired to A5 input. This is not something that I need, but janithdg told me that it's mandatory in some parts of the world. And support for it seems to be in GIT. Then the CEL light is wired to pin 37, so when programmable outputs are available, that can be used as shift light for example. Pins 35, 33 and 31 are also connected to ULN so there is 3 more spare relay etc. outputs. And because closed loop VVT control may be thing in some day I also added the cam input. This is something that doesn't work directly in M52. You would need to use for example m52tu/m54 intake cam sensor. Or any generic hall sensor. For that there is JP1 jumper that allows the hall sensor to be powered from 12v or 5v. If you for example put this to 12v and replace stock m52 cam sensor with m52tu/m54 intake cam sensor, it will work great. BUT DO NOT USE THAT JUMPER WITH STOCK M52 INTAKE CAM SENSOR. It will fry the sensor or something else. And because sequential injection and ignition is not a thing yet, the cam sensor is quite useless, before closed loop VVT control can be used.