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Engine Control Module (ECM) and Engine Control Unit (ECU)...I use them interchangeably (probably incorrectly) when I refer to the computer that controls the engine parameters.
HPTuners refers to a VCM (Vehicle Control Module) because it also talks to the Body Control Module (BCM), and PCM (Powertrain Control Module)
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2010 1SS/RS - CGM/Gray Interior - M6 (SOLD) Kooks 1 7/8" headers, Solo Mach-X, Vararam.
2012 2LS - Black A6 (SOLD)
2016 1SS Summit White A8
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