CM
I think the plate assembly that 180 is talking about is in this thread:
https://www.crossfireforum.org/forum...-problems.html
Give it a read and see if any of the symptoms relate to your problem.
As far as no codes being pulled - earlier in this thread Doc mentions you might need a Dealers "Star" system to get a diagnostic. Then, Pizza and Alaxfire talk about getting the Ultraguage. Since I have absolutely no experience with either of these systems, I am wondering if they are equal. Can the Ultraguage diagnose as well as the "Star" system?
Thanks
RL