Tells the ECU that the key is turned to the "ON" position, waking up the processor.

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To accurately locate a pinout, you must first identify the generation and pin count of your specific ECU casing. 35-Pin Connectors (Motronic 1.0 / 1.1 / 1.3)

Found on classic European vehicles from the 1980s, such as the BMW E30 (M20/M30 engines) and Porsche 944.

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: A 68-pin unit used in the early '90s. It manages sequential injection for individual cylinders (Pins 2, 3, 4, 24, 25, 26) and includes specific pins for sensors like Mass Airflow (Pins 16, 17).

Controls engine idle speed and airflow.

Bosch Motronic Ecu Pinout Jun 2026

Tells the ECU that the key is turned to the "ON" position, waking up the processor.

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To accurately locate a pinout, you must first identify the generation and pin count of your specific ECU casing. 35-Pin Connectors (Motronic 1.0 / 1.1 / 1.3) Tells the ECU that the key is turned

Found on classic European vehicles from the 1980s, such as the BMW E30 (M20/M30 engines) and Porsche 944. If you share with third parties, their policies apply

Are you attempting a , a standalone wire-in , or diagnostic troubleshooting ? Share public link

: A 68-pin unit used in the early '90s. It manages sequential injection for individual cylinders (Pins 2, 3, 4, 24, 25, 26) and includes specific pins for sensors like Mass Airflow (Pins 16, 17).

Controls engine idle speed and airflow.