How do you adjust the injection pump of a duramax?

To adjust the injection pump on a Duramax engine, you typically need to use a specialized scan tool to monitor fuel pressure and injector timing. First, ensure the engine is at operating temperature, and then use the scan tool to access the injection timing settings. Adjust the timing as needed, following the manufacturer's specifications. Always ensure that any adjustments are made carefully to prevent engine damage and maintain optimal performance.