What garbage, they say. But, little did they realize that ECU engine tuning would be a real thing in the future. In fact, it would become an art. It would even be relatively affordable to do.
“This ECM voltage ... corresponds to a 24-pin connector split into A1–A12 and B1–B12. The second section (C–D) corresponds to a 32-pin connector split into C1–C16 and D1–D16. Voltages are shown for ...