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      07-28-2026, 09:22 AM   #6
amg6975
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Drives: '12 M1.5
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Quote:
Originally Posted by charliev68 View Post
Just curious. What is the little black box parallel to the pcm?
PCM? The DME? (Engine computer?)

I think you're talking about the power supplies. Mine has two, the other pictures only have one. They provide a clean voltage rail for sensors and such.
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