CDI high pressure control loop function

GF07.16-P-3104IB

10.9.99

ENGINE 628.960 in MODEL 220.028 /128

ENGINE 628.963 in MODEL 163.128

ENGINE 628.961 in MODEL 211.028

P07.16-2233-76

21/7 Valve block

B4/6 Rail pressure sensor

B28 Pressure sensor

B11/4 Coolant temperature sensor

B37 Accelerator pedal sensor

F1 Fuse and relay module
(model 163)

K40/7 Right front fuse and relay module (model 220)

L5 Crankshaft position sensor

N3/9 CDI control unit

N10/1 Driver-side SAM control unit with fuse and relay module
(model 211)

Y74 Pressure regulator valve

Y94 Volume control valve

Task

Controlling and storing the fuel required for injection.

Function

The rail pressure sensor (B4/6) measures the current fuel pressure in the valve block and thus also in the rails (21), and transmits a matching voltage signal to the CDI control unit (N3/9). The CDI control unit (N3/9) detects the current operating condition of the engine and the current driver request on the basis of the input signals received. The rail pressure is adapted by energizing the pressure control valve (Y74) with a map-dependent control current until the specified pressure is achieved in the valve block (21/7).

High pressure pump, location/task/function		GF07.02-P-2102IA
Rail pressure sensor, location/task/design/function		GF07.04-P-5034I
Pressure control valve, location/task/design/function		GF07.05-P-2101I
High pressure lines, location/task/design		GF07.03-P-5003I
Valve block, location/task/design		GF07.03-P-2102I
Rail location/task/design/function		GF07.03-P-2101I
Quantity control valve, location/task		GF07.05-P-3103I
CDI control unit, location/task		GF07.16-P-3101IB
Pedal value sensor location/task/design/function	Engine 628	GF30.20-P-4011L
	Model 211, 220	GF30.20-P-4011A
Common rail diesel injection control unit input/output signals	Model 220, 211	GF07.16-P-0001-04IF
		GF07.16-P-0001-04IH

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