ME-SFI part load/full load operation, function - GF07.61-P-3016V

ENGINE 272.920 in MODEL 203

ENGINE 272.922 in MODEL 211

ENGINE 272.940 in MODEL 203, 209

ENGINE 272.941 in MODEL 203

ENGINE 272.942 in MODEL 171

ENGINE 272.943 in MODEL 211

ENGINE 272.944 in MODEL 211

ENGINE 272.945 in MODEL 251

ENGINE 272.946 in MODEL 221

ENGINE 272.960 in MODEL 203, 209

ENGINE 272.963 in MODEL 171

ENGINE 272.964 in MODEL 211, 219

ENGINE 272.965 in MODEL 221

ENGINE 272.966 in MODEL 230

ENGINE 272.967 in MODEL 164, 251

ENGINE 272.970 in MODEL 203

ENGINE 272.972 in MODEL 211

ENGINE 272.975 in MODEL 221

ENGINE 273.922 in MODEL 221

ENGINE 273.923 in MODEL 164

ENGINE 273.924 in MODEL 221

ENGINE 273.943 in MODEL 164

ENGINE 273.960 in MODEL 211, 219

ENGINE 273.961 in MODEL 216, 221

ENGINE 273.962 in MODEL 211

ENGINE 273.963 in MODEL 164, 251

ENGINE 273.965 in MODEL 230

ENGINE 273.967 in MODEL 209

ENGINE 273.968 in MODEL 221

Fig 1: ME-SFI Part Load/Full Load Operation, Function - Engine 272.920/940/941/960 /70

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Part load operation: When the engine is at operating temperature optimal emission levels and good fuel consumption are assured in combination with the lambda control.

Full load operation: Maximum engine torque is produced at a pedal value of > 90 %. The injection time is extended accordingly for this purpose.

The particular quantity of fuel is metered to the engine in line with the performance map. The fuel quantity depends on:

Coolant temperature
Intake air temperature (only in warming-up phase)
Engine speed
Engine load
Closed-loop mixture control
Intake manifold length
Tumble flap position
Camshaft position
Ignition angle.

Component description for the ME-SFI [ME] control unit		GF07.61-P-6000V
Component description for the coolant temperature sensor		GF07.04-P-6040V
Component description for the camshaft Hall sensor		GF07.04-P-6020V
Component description for the crankshaft Hall sensor		GF07.04-P-6220V
Component description for the variable intake manifold switchover valve		GF09.20-P-6001V
Component description for the intake manifold tumble flap switchover valve		GF07.05-P-6030V
Component description for the hot film MAF sensor		GF07.07-P-6000V
Component description for the accelerator pedal sensor		GF30.20-P-2010V
Component description for the throttle valve actuator		GF30.20-P-2020V
Component description for the position sensor tumble flap		GF07.04-P-6230V
Component description for an	O₂ sensor O₂ sensors upstream of TWC	GF07.04-P-6100V
	O₂ sensors downstream of TWC	GF07.04-P-6100VA
Component description for the knock sensor		GF07.04-P-6030V
Component description for the camshaft solenoid		GF05.20-P-2100V
Component description for fuel injection valves		GF07.03-P-6010V