What Check Engine Light trouble codes were downloaded ? The Evap System is fairly basic, and competent mechanic, or persistent Jeep owner should be able to find the failed or hose or fitting.
Incompetent, Ignorant, or lazy mechanics always blame the CPU for problems they can't, or won't diagnose. I suggest you find a more skilled and resourceful mechanic. CPU failure is very highly unlikely, and an Evap issues certainly would not cause the CPU to fail.
A new Gallup opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.
Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ...
Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.