Let’s apply the datasheet knowledge. You have a BMW E46 that cranks but won't start. You suspect the ECU (Bosch MS43).
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For bench programming, identify the specific pinouts for power and communication (K-Line/CAN) and use a dedicated cable, such as the EGPT tool. To give you the exact pinout, I need to know:
(Gasoline). Searching this specific number is far more effective than searching by car model. Chiptuning Databases: