The Precision Governors E‑381 is a 24 V single‑speed engine controller that regulates throttle via a magnetic pickup and actuator linkage. Common failures include loss of power to the control board (often from a blown regulator or degraded supply), faulty sensor wiring or contact on the magnetic pickup, and internal component burnout such as the op‑amp or MOSFETs when over‑voltage occurs. For this model, check for any visible burn marks or loose solder joints on the PCB, verify that the 24 V input is stable, and confirm that the actuator link is correctly seated and free of mechanical binding. First‑check diagnostics: (1) measure input voltage and regulator output; (2) inspect wiring harness continuity to the pickup and actuator; (3) review any diagnostic LEDs or error codes displayed on the unit.[oss-gpt-20b]