If there is a DME fault, your auto might not start, the engine light could be on or there'll no interaction with the DME. Is DME the same as an ECU? Flash tunes slide the place ever you and/or your tuner make a decision. Certainly, piggyback tunes can be Harmless https://bmw-ecu-list78901.link4blogs.com/51972020/everything-about-ecu-gmat-waiver