|
|
Operation And Maintenance Instruction For SQE480ED Engine Sequential Multi-port Fuel Injection System 1. Description SQR480Ed electric injection utilize M&M sequential multi-port fuel injection system which is of λSpeed Density Type ( engine speed, air density, air/fuel mixture control) and can control sequential fuel injection and distributor less ignition. The system consists of 4 essential parts. 1:Air system 2:Fuel Supply System 3:Control system 4:Ignition system
1.Fuel Tank 2.Fuel pump 3.Multi-function valve 4.Check valve 5.Fuel Feed Pipe 6.Engine ECU 7.Battery 8. Ignition switch 10.system relay 11.A/C compressor 12.Carbon canister solenoid 13.Fuse 14 Active carbon canister 15. Anti-theft unit 16.Absolute pressure and temperature sensor 17.Crankshaft speed and position sensor 18.Spark plug 19. Coolant temperature sensor 20. Fuel injector 21. Throttle position sensor 22.idle step motor 23. Fuel rail 24. Air Filter 25. Ignition coil 26. Oxygen sensor 27. Warning Indicator 28. RPM sensor 29. way catalyst converter 30. Knock sensor 2. Operation Theory The system enable the actual measured air/fuel ratio to approach chemical reaction equivalent proportion, protecting 3 way catalyst converter and reducing exhaust pollution. Oxygen sensor real-time analyzes oxygen content of exhaust , which enables ECU to Fig 1 SQR480ED Electric Injection System Theory Illustration
|