i use Arduino SPI vs MCP2515 + MCP2551 CAN driver conect ECM 29bit ext
i conected and display data adress vs CAN.bus lib but the ECM transmiter Coolant temp on diesel ECM with Prioty 6 vs 0x18FEEE very long
I need code request active arduino read direct from adress J1939 0x18FEE00 fastly