i am currently havin some ecu issues and to make sure it is the ecu and not sumthing else i am gonna test my thery... my friend has an 03 ep3 and i have an 03 ep3 can i take his ecu and put it in my car and see if my check engine light doesent come on in my car with his ecu or if his car with my ecu and see if a check engine light comes on to limit my expenses at the stealership????? idk if honda k- series ecu's are interchangeable with eathother...... please help

 

if i were you to save time if your check engine is on i would go to any autozone or advance auto part they would connect the computer to your car and check why the light is on for free..

 

i have and i think the ecu is shot i changed the sensors and still have the same problem

 

It would plug up and function, but your only problem is the immobilizer since your key won't match the ECU. Might be a problem

 

wtf. tell your friend go get the code pulled out. what is swapping a ecu going to do.