I have a 1994 Dodge RAM B150 and I dont know what ECU I have
(LM, SMEC T1, SMEC T2, SBEC T1, SBEC TIII, SBECII T1, SBECII TIII, FCC, ???)
I don't know how to determine my ECU type
I have tried serveral types in MPSCAN and can often get valid data back within Sensor Diagnostics
But keep getting unable to open port when running a Profile/Display
I think I need to start by making sure I have the correct ECU type selected