Fuel injectors deliver precisely metered fuel into the combustion chamber or intake port. Clogged, leaking, or electrically faulty injectors cause misfires, poor economy, and rough running. Modern diesel injectors also require coding to the ECU after replacement. At CarParts247 we stock petrol and diesel fuel injectors from Bosch, Siemens/VDO, and Delphi.
Petrol injectors operate at lower pressures (3-5 bar port injection, up to 200 bar direct injection). Diesel common-rail injectors operate at extreme pressures (up to 2,500 bar) and are precision-machined components.
Diesel injectors have individual correction codes (IMA codes) that must be programmed into the ECU. Without coding, the engine may run rough, produce excess smoke, or damage the DPF.