Ok I had the 18" rims tires mounted from my stock 17". Shared some photos here and all was great. Well after 50 or so miles the Tire Pressure Monitor Fault light came on. So I took it to Ford to recalibrate for the new size. They said I couldn't do it with my SCT 2. I was told this would not effect my custom tune. They recalibrate it, no fault light. Great! I went to drive off and the CEL was on. Back in the shop they read the code and it was a lean code (I didn't get the number). The mechanic checked the gas cap and cleared it. Came back on when I started the car. I had gone to the their body shop. Another issue with some paint pealing around the rear window in the channel. Again back to the service dept. They said it would be an hour to isolate the problem. I had to go to work. They told me the car would be fine and could come back later or Monday. So did they mess up my tune and do I need to re-flash it back? I have a JLT II with an SCT x2. Any help would be appreciated.