Procal 4 Tuner issue - Tire related

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Hi all, I installed the tune and love it. I went to change the tire size and put the revolutions at 583 (325x65x18) and saved it.

It is giving me a 4x4 error wrench and a service engine light. I put it back at 650 rev's - and still have the issue. Help?

 

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Fixed....on the tuner, it goes through a shut down 3x. I only did it twice. Thought I was just doing the same thing over and over again. It actually said "codes cleared" at the end and gave me a "Finished" sign.