I just replaced my pcm in my 09 Honda accord with the 2.4l in it. The pcm was ordered Vin specific after replacing it the check engine light went off codes went away for pcm internal malfunction but now I have the little green key that blinks when I try to start it I will start idle and shut off I don't know how to go about this as I have looked up way to reset it but none have worked is there any relays or anything that would make this do this or is there a way to bypass or reprogram the key if that even what it is I'm not a real experience gear head so I'm learning as I go but I don't have the money to put it in a shop labor prices are killer any help would be muxh appreciated.

 

Some locksmiths can reprogram the immobilizer system for the keys/PCM, or you can use a device like this Autel to do it yourself.