Hi everyone! So it finally happened, got a CEL P207F (reductant quality- performance problem) on my '14 2500 limited which gives me 150 miles til limp mode kicks in. I was wondering if I do the EGR/DEF deletes with the MM3 tuner, can I clear the CEL/code and not have to take it to the dealership? Or do i have to bite the bullet and take it to them first to have it fixed and then delete? Any help is appreciated. Thanks.
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