Ignore that. Flashing light, like everyone had mentioned is key related. Either the transponder, UCH (key validation issues), decoder ring or wiring from the ignition to the UCH. What happened when you used the spare key?
The spare key does exactly the same as the normal key i use!
you need a ecu kit, i have one if you need one
I has exactly the same problem in mine, have alook at my thread for ideas
http://www.cliosport.net/forum/showthread.php?t=670273
Immobiliser Issue
Immobiliser issues tend not to have anything to do with the immobiliser
Yep mine was to do with the 12v feed to the decoder ring
So could you explain in English what you actually did....?
ecu, uch and key, all removed off same car
as theses items are coded to each other
Ah ok cool, that sounds like a serious amount of effort, ill see what the damage is at Renault, should hopefully get it there today....
So if mine is on its way out I'd need 2 key fobs and matching UCH and just swap the UCH and then swap blades over in the fobs so wouldn't have to change all the locks over