Thank you for your fast reply.
I will try top find a solution to add the data from the arduino to the OBD bus.
If I geht it working I will come back to you for the next steps.
I am using HLT with ScanTool OBDLink und XGPS. Addtionaly I woul like to connect my Arduino through an HC-05 bluetooth module as an custom OBD sensor to be able to transfer som data like oil temperature and pressure from the Arduino to HLT. Its not important to display these values during ...