What is the typical result of improper fuel injection timing?

Improper fuel injection timing can lead to decreased torque for several reasons. When fuel is injected into the combustion chamber at the wrong time, it can result in incomplete combustion. This incomplete combustion prevents the engine from generating the optimal amount of power during the combustion cycle, subsequently reducing the torque produced.

Additionally, incorrect timing may cause the fuel to ignite too early or too late in the cycle, which can disrupt the efficiency of the engine’s power stroke. Early injection may lead to premature combustion, resulting in reduced pressure within the cylinder during the power stroke. Late injection, on the other hand, can diminish the time available for fuel combustion to contribute effectively to the torque generation.

The overall consequence of these timing issues is a reduction in the engine's ability to produce torque, affecting both performance and drivability. Thus, the correct answer accurately reflects the impact of improper fuel injection timing on engine output.