did you have your koldfire tune when it was not an issue? im almost certain that when it was tuned they turned off the readiness monitors. contact koldfire and double check. This happened to me on my 2010 exige with a different tune. luckily i had access to a spare ecu.2006 Exige with BWR supercharger on Koldfire tune. Never had this issue until maybe half a year ago.