When an engine issue is detected, common causes include worn spark plugs, dirty air filters, faulty oxygen sensors, or fuel system problems. These can lead to poor fuel economy, rough idling, or reduced power. Fixes often start with simple maintenance: replacing spark plugs, cleaning or replacing the air filter, and checking fuel pressure. A clogged fuel injector or malfunctioning ECU may also trigger symptoms. Using an OBD2 scanner helps identify specific error codes for targeted repairs. Regular oil changes and coolant checks prevent overheating and internal wear. Most engine problems are preventable with routine service. Following the manufacturer’s maintenance schedule and addressing warning signs early ensures reliable performance and avoids costly repairs. Professional diagnostics provide accurate solutions tailored to your vehicle’s needs.