Hello im asking about my old ecu/ecm and the new one im purchasing does the number on it have to match the one came out my car its the same design model and plugs up the same way but the numbers on it are different will that be a problem i was told that it has to be the same numbers on my ecu/ecm for me 2006 nissan sentra 2.5 6speed manual but it has to work because no to ecu/ecm numbers are the same so will this work for my car everything matches except for numbers slight difference between the numbers the ole one numbers are MEC64-520 B1 5992 nd the new one is MEC63-460 B1 it came out the excat model and year of the car even the same color if that helps

Cars & Trucks - Nissan - Sentra - 2006 Nissan Sentra 2.5