bosch common rail injector repair manual

New injectors to be coded to the engine control unit. Fitment of replacement injectors will require the

This data code allows the engine control module to correct the pulse duration applied to each individual injector to maintain optimum performance. The data code is programmed into the engine control unit identifying to which cylinder the injector is fitted. To as the C2i code, IMA/IQA code or QR code depending on manufacturer. Slight difference between target flow and actual flow can occur due to high operating pressures.Ĭertain common rail diesel fuel injectors require calibration during manufacture or overhaul on a specialised diesel injection test rig to produce a data code relating to the characteristics of each individual injector. The fuel injectors are machined to very fine tolerances but because of individual characteristics such as friction, pressure drop, magnetic force, wear during service etc, very slight variations in flow can occur. With the common rail system, however, pressure generation and injection are separate, meaning that the fuel is constantly available at the required pressure for injection.Ĭomments are closed.The amount of fuel injected is proportional to the injector duration (opening time), fuel rail pressure, fuel temperature and fluidĪ target value for injector duration under specific conditions is programmed into the control unit (ECU) engine control map. Mode of operation With conventional diesel injection systems, the fuel pressure has to be generated individually for each injection. With the common rail system, however, pressure generation and injection are separate, meaning that the fuel is constantly available at the required pressure for injection. With conventional diesel injection systems, the fuel pressure has to be generated individually for each injection. The system is named after the shared high-pressure reservoir (common rail) that supplies all the cylinders with fuel.

Ford Escort Vii Service Workshop Repair Manual download on this page.Ĭommon rail injection: advanced technology for diesel engines Bosch launched the first common rail system in 1997. download 94 Chrysler Lebaron Haynes Repair Manual there. download Tohatsu 30 Hp 4 Stroke Owners Manual there. 1.4 Common Rail System Characteristics zThe common rail system uses a type of accumulation chamber called a rail to store pressurized fuel, and injectors that contain.

Bosch common rail injector repair manual