Use an OBD-II scanner to pull Diagnostic Trouble Codes (DTCs). These point you to failing sensors or misfiring cylinders [3]. Mechanical Tests:
Change the oil and filter after the first few hundred miles to remove any microscopic metal shavings from the new parts bedding in. Automotive Engines: Diagnosis, Repair, Rebuilding
Components are installed using precise torque specs and "assembly lube" to prevent friction during the first start [2]. 4. Break-In Procedure The first 500–1,000 miles are critical. Use an OBD-II scanner to pull Diagnostic Trouble