Me7.4.5 Pinout

Ensure your power supply is providing at least 12.5V-13.5V. Low voltage is the #1 cause of failed flashes.

Do not connect Pin 1 (Sensor Ground) to the same wire as Pin 2 (Power Ground). The ME7.4.5 uses separate ground plains internally. Tying them externally can induce alternator whine into your MAP and TPS signals. me7.4.5 pinout

If you are socketing or bench-flashing this ECU, pay extreme attention to and Pin 46 . Ensure your power supply is providing at least 12

The ME7.4.5 pinout is robust but unforgiving. Unlike older Motronic systems, you cannot simply "test for continuity" between every sensor and the ECU; the differential ground system (especially for the throttle pedal) will give you false readings. me7.4.5 pinout