So, I have tried to invert the connector of the WUR and Cold Start Valve and everything is running fine.
Video below
https://youtu.be/B7VSPZzk9V0
Around 900rpm. Don’t worry about the smoke; it comes from the exhaust which still has some WD40
On the other hand, when I plug the connector where they should be, same problem, the car starts but stall after a second.
Do you have any idea what is happening now?
Thank you very much for you kind help.