NANO

266 ENGINE 273 MPFI FUEL INJECTOR Storage Temperature and Operating Temperature Storing temperature (original packaging): -40°C to 70°C Maximum time of storage: 1 year Maximum injector temperature in the vehicle (not operated): 140°C Operating temperature: 1. Continous permissible temp.: -40°C to 110°C 2. In short termoperation after hot start (about 3min.) permissible up to 130°C. 3. Permissible fuel temperature at injector inlet: - < +70°C (continuous) up to 100°C (short-term about 3 min.) 4. In the temp. range from -40°C to 45°C, a flow deviat ion of up to 5% ( in relat ion to the measurement at 20°C) can occur due to the temp. influence. Above 45°C a flow deviation in excess of 5%may occur depending on the characteristics of the fuel and on the test conditions. Pin Details Injector 1 Signal ConnectorPinNo. ECUPinNo. UBR Main Relay 1 - Injector 1 2 5 Injector 2 Signal ConnectorPinNo. ECUPinNo. UBR Main Relay 1 - Injector 2 2 16 Type EV 6 C Location Two numbers of injectors are fitted on fuel rail and fuel is fed by a common fuel rail so that the fuel spray from each injector is directed towards the inlet valve, inside the inlet port. Working Principle Fuel Injectors are the actuators which controls the air fuel mixture which in turn controls the engine output. The amount of fuel delivered by the fuel injector is determined electronically in accordance with the air flow in such a way as to minimize pollutants in the exhaust gas. System Integration Supply voltage: 6V to 16V (from main relay) ECU provides drive signal to Injector (normally closed valve) to open and remain in open condition (pulse width-ms) depending upon the engine operating conditions (speed/load). Also the pulse width is compensated for low battery voltage condition. The concept of Sequential injection means when ECU provides drive signal to each injector separately at the end of compression.