I had 3 codes, P2006 (1/3, 3/3) and P0461 (2/3), I believed this is due to too much gas filled (till the neck). Thus the codes turned on. First time it went off after 1 week of driving. Car was running normal. 2nd time (Jul2013) it lasted for few weeks until code erased manually using an autoscanner. Borrowed from Advance auto parts - ACTRON Autoscanner, plugged in to the OBD II port, turn engine to on (not starting), read the code. Once confirmed the codes, use the scanner to erase the codes. Once erased, turn engine off - wait couple seconds and turn to on again. Use scanner to check if any codes remain. Run the engine for a few minutes. Check again. This is the solution for my 2007 Sebring 2.4L. Good luck.