Which outcome occurs when the fuel injector transistor in an engine control unit (ECU) shorts closed?

💡 Explanation

When the fuel injector transistor shorts closed, continuous current flows to the fuel injector because the control signal is bypassed, causing it to remain open regardless of ECU commands, resulting in a continuous fuel injection and rich combustion condition. Therefore overly rich combustion happens, rather than misfires, overheating, or fuel pump shutoff all of which require different electronic system faults.

• Which outcome occurs when high Carrier-to-Interference Ratio (CIR) signal is sustained in wireless communication systems?
• Which consequence results when adaptive cruise control improperly adjusts?
• Which outcome occurs when a three-phase power system experiences ground fault impedance imbalance protection?
• Which failure mode is accelerated when microscopic casting voids initiate near the piston crown's combustion face?
• Which outcome increases when a high-brightness LED's thermal management system exhibits increased thermal resistance?
• Which mechanism causes fluid hammer pressure spikes when rapidly closing a hydraulic actuator's control valve, potentially damaging pipeline components?