Quote:
Originally Posted by 6MT
No Landon, you won't loose the UpRev tune. It's stored in ROM* and not affected by removing power or resetting the ECU.
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Fixed that for you
ROM = Read Only Memory. This type of memory doesn't lose data when power is cut. Data is "burned" or "flashed" onto the chip.
RAM = Random Access Memory. This type loses data when power is cut.
Your computer, cell phone, iPad, etc all have both types of this memory. Think of your ECU ROM as the hardware settings that stay constant every time you turn your PC/phone/tablet off, while RAM is the data you lose like open documents and browser tabs.