My CrossFire is a 2004 with 24,000 miles. I have the same intermittent engine light problem which occurred after the warrantee period and the dealer has changed the air soleniod and PCM.
The car is out of warrantee so I paid for the solenoid replacement, however the PCM was changed and not charged. Chrysler picked it up even after the warrentee period.
The light came on again and I will be returning to the dealer in several weeks for regular service and will see what happens.
I have had no other problems with the car.