I was wondering if I could write my own patch to a tune that is locked by another tuner? I need to get the mil light turned off in my truck and my tuner is not available this weekend and if it can be done could I throw a few bucks someone way to have it done quickly? I have the 2 crazy codes that don't mean anything but they are there I think 1 of them is P154B then P154D and I believe the last one is 2ed8g. weird one but they do throw the mil.