Which tool is the best solutions for Opel EDC16C9 write? Some with mppps, some with kess v2, fgtech galletto v54… Here, I collected all useful info for you to write EDC16C9. Mpps cable is verified to write EDC16C9 perfectly!!!!!!! Use MPPS above v12 if you have (better mpps v18). Can read/write data area. I rewrite mine for 50 times. KESS and Galletto can not read and do full write. Look to me that have some missing parts in the middle, at least compared to mine Vectra C. I can confirm from first-hand experience that MPPS can read and write both the EDC16C9 and EDC16C39. Obviously you can only read and write the data area in each case (aka a ‘partial read’) but that’s the same for any OBD tool. But that contains everything you need to tune, or to disable EGR and DPF). To read/write the full ECU (i.e. to access the Operating System and User Program areas), or the serial EEPROM (where mileage, immo codes, service counters, etc) are stored, then you have to open the ECU case and use a BDM tool. But for normal tuning and DPF/EGR removal this is totally unnecessary…