A fuel injector is nothing but an electronically controlled valve. It is supplied with pressurized fuel by the fuel pump in your car, and it is capable of opening and closing many times per second. When the injector is energised, it supplies the pressurised fuel to squirt out through a tiny nozzle. The nozzle is designed to atomize the fuel — to make as fine a mist as possible so that it can burn easily. A bad, faulty, dirty, clogged, or leaking Fuel injectors may cause poor idle, bad performance, starting issues, increased fuel consumption and needs to be repaired or replaced. Check our Online Automobile Spare Parts Store to buy Genuine and high quality brand like Delphi Fuel Injectors & Parts. In case of any query do get in touch with us.