The check engine light on an FSO vehicle acts as an early-warning system, signaling specific issues that may affect performance and emissions before causing severe engine damage. Prioritized diagnostic data--such as fault codes related to oxygen sensors, mass air flow sensors, and ignition timing errors--are crucial for pinpointing the root cause. For FSO cars, timely interpretation of these codes using professional-grade scan tools not only optimizes repair accuracy but also enhances overall engine longevity and fuel efficiency. With regular maintenance and immediate attention to check engine alerts, owners can ensure that their FSO vehicles continue to deliver reliable performance and adhere to environmental standards.
