Bosch Motronic Ecu Pinout May 2026

Now go forth, probe lightly, and let the Motronic fire. Looking for a specific pinout for your Bosch ECU? Leave the Bosch part number or engine model in the comments below – we will help you track down the correct diagram.

The Bosch Motronic system is one of the most iconic and long-running engine management systems in automotive history. From the legendary BMW M20 and M50 engines to vintage Porsche 944s, Audi Quattros, and early Volvo turbos, Motronic bridged the gap between purely mechanical fuel injection and fully modern digital engine control. bosch motronic ecu pinout

35-pin rectangular (1.1) or 55-pin (1.3). The 55-pin is sometimes labeled “M1.3”. Now go forth, probe lightly, and let the Motronic fire