Hi Rontive08,
Sorry to hear you have problem with your car, I hope you find something useful in my documentation. One thing of all that I have done related to this is to change the O-rings for the injectors. It didn't help in this case, but good to have new O-ring installed, they ages.

I sold my Crossfire a couple of months ago. I had it almost for ten years, one of the best cars I have had and it didn't cost much either.
I wish good luck with solving your problems with the Crossfire.

Lars