Corvette CCM Reverse Engineering Anyone?

[spfautsch]

Here you go - this is from the routine that feeds internal controller data to the serial port for logging. If memory serves, the 'engineering units' was chosen for the controller's internal use to match the ranges of the stock $EE spark vs ect tables.

            case 'C':
              // coolant temp C
              Serial.print((ectValue * 0.75) - 40);
              break;
              

            case 'F':
              // temp in fahrenheit
              Serial.print((ectValue * 1.35) - 40);
              break;