Which effect occurs when a turbocharged gasoline engine experiences fuel injector failure causing lean combustion at high RPM?

💡 Explanation

When fuel injectors fail, lean combustion occurs, creating elevated exhaust temperatures that heat the exhaust valves because unburned fuel is insufficient to control valve temperatures. Therefore pre-ignition results, rather than detonation, oil dilution, or hydraulic lock which require rich or normal combustion states.

• Which outcome occurs when excessive electrical noise interferes with a PLC's analog input module controlling a chemical reactor's temperature?
• Which outcome increases in a fly-by-wire aircraft when airspeed decays below the preprogrammed minimum?
• When rapid changes in current direction overload an isolation transformer linked to medical equipment, which immediate consequence results?
• Which failure occurs in a robotic arm when its encoder pulses are sporadically dropped?
• In aircraft forging, which consequence results when dies are improperly aligned?
• Which risk increases when welding near pre-stressed concrete beams?