is it true that electronic parts on car can carry a program in memory w/c is coded to the individual car.a sec

Question

i'm trying to swap my ecu w/ the same match numbers but i'm scared bec. it might introduce new faults to my car,is it true that since 1995 the majority of ECUs carry an identification/immobiliser code.?

Answer 1

Hi there,
You don't give car age or type, more recently car manufacturers have tied ecu's into security and will mean that if the ecu is not programmed to accept a certain key it will not start and security will lock out and will not start till it is programmed to accept key info.
Older cars, if the ecu part no: is the same you could transfer without any problems but not so easy nowadays.

Answer 2

You don't give type of car or age. You can swap ecu, but may well (on a newer car) need to get it reprogrammed by a dealer before the car will run at all

Answer 3

call the dealership w/ the ecu intorduction number and they will tell you if it will work or not, don't hesitate to call the dealerships