Buying a used ECM

[theguy3]

Hi everyone, Got the P0505 code with occasional stalling and erratic idle. I'm planning to replace the IAC and TPS with new parts, and planning to get a used ECM on eBay. I've found one from a 2001 I30 just like mine, but how can I know if it will be a match without taking out my current ECM to read part numbers. Thanks for your help!

[Humpty]

If it's out of a '01 i30 it will be the same. Only issue is when you swap them from car to car without programing the VIN in the ECM sometime the ABS light will stay on. Other than that it should be good to go. Just to make sure your ECM is going out or it's not the connections, get some electronics cleaner and unplug the cables from the ECM and spray both the male/female components let dry and plug back in. A lot of times it could just be corrosion on the connectors and save yourself $$$