Determining if your ECU / DME has unsuccessful and what faults are current is step one in replacing or repairing your ruined . The most simple exams to find out If the ECU / DME has unsuccessful are: OBD fault codes - Most diagnostic scanners can examine fault codes from https://bmw-ecuador56788.blogrelation.com/36011930/not-known-facts-about-ecu-bmw-f10