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I have a 2002 3.6 carerra and am considering changing the DME module. I have been offered a used DME which has low recorded mileage and no over-revving. I have use of a pst2 and I know the ipass codes for my own car and can get them for the donor vehicle. My question is if use use the pst2 DME programming facility to set up the donor ECU to use on my vehicle, is the hours run, over-revs, mileage etc transferred from the original ECU to the donor ECU or are the donor ECU mileage etc maintained? Does the programming process render the original ECU unusable or can either ECU be used? Both ECU modules are 7.8 and should be compatible.

Any help would be appreciated!

Thanks, Paul G

Edited by Paul Grainger
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You will defintely need the IPAS codes for the donor DME. You will need them to set the immobiliser code to the same as your current DME. Programming the fuel map will not change the Vehicle Data in the donor DME. It will retain its coding and mileage, etc. You will be able to change the coding, but not the vehicle mileage or rev range values stored. You could get the mileage corrected, but I doubt any/many of the people who do this can correct the hours counter and rev ranges.

Your original DME will still work. No reason for it not to, as you aren't changing anything.

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