Understanding the design of Acura fuel injectors and how they work to supply the fuel your engine needs, as well as their role in helping to use that fuel efficiently, is an important part of deciding when to replace them. Acura fuel injectors are designed to be very responsive to fuel needs, while being fuel-efficient at the same time. To achieve both of these ends, an electric fuel pump able to put forth fuel at high pressure - that's what makes Acura fuel injectors so responsive to sudden changes in fuel requirements, such as in passing - is necessary. Because of the focus on making Acura fuel injectors durable and long lasting, it is often possible to push them past their expected life span using the tricks and get-by strategies of backyard mechanics. However, as a true auto technician knows, while these tricks and strategies may keep the vehicle running for a while, it is better to change Acura fuel injectors rather than to squeeze a little more life out of a part past its prime. In the end, you'll probably spend less money replacing Acura fuel injectors, as when fuel injectors are not functioning their best, other systems that cost much more -- in money, time or both -- to fix or replace can be compromised. For example, not replacing Acura fuel injectors when required and trying to resolve the symptoms of the fuel injector problem by flushing them can cause damage to the oxygen sensor or even to catalytic converter. Acura fuel injectors play an important role in the overall health of a vehicle and necessary replacement should not be put off.