I know there's Argdubs tool for combining an ECU EEPROM with a cluster EEPROM, but is there a way to combine two ECU EEPROMs?

I'm not really sure what data I need to swap; and where it's stored.  I want to do it this way because I don't want to go out in the cold.  Could probably just adapt the new ECU, but meh.

Basically, the ECU that was in the car is a DR.  Has an HN file on it.  I wrote the original DR file back to it and it bricked it, I've no idea why.

I didn't want to overwrite the HJ ECU with the DR EEPROM incase it bricked it and I'd have to do it again, so I'd rather just copy over the data that I need to from the DR into the HJ.

But alas, I ventured into the cold and coded the ECU into the car, it took like a fish to water, no issues.  I'd had previous problems coding clusters and keys, so thought the ECU would be the same stupid issue, but it wasn't.

I suppose this could be deleted.

Sarry, must've typed too fast.

Isn't DR immo2?  That'd be why you bricked it.