Even after a code(s) is cleared, the PCM must go through x number of "run cycles" before the secondary codes will clear. I am not sure of the Crossfire since I have not looked into it. But a "run cycle" is when the car is started, and the engine temperature rises a certain amount of degrees of temperature.

It is set up that way so you don't clear the code before entering the testing station just to get it to pass. I will attempt to get some info when I get time.

James