The code if not cleared will show up when the engine is started but will go away if all is good. If it is an active code then the unit will will have all the dash lights going crazy and depending on the sensed fault will either not be effected as in an e-41 or half throttle as in an e-32 or idle situation as in an e-33. Sounds like the unit is running ok as of now. Thanks for checking back in and letting us know.