Fuel pump control unit, location/task/design/function - GF47.20-P-4009HA: Notes
ENGINE 113.991 in MODELS 215, 220
ENGINE 113.992 in MODEL 230
ENGINE 113.993 in MODEL 463
ENGINE 113.995 in MODEL 230
| Fuel pump control unit, location | Model 215, 220 | GF47.20-P-4009-01M | |
| Model 230 | GF47.20-P-4009-01HA | ||
| Model 463 | GF47.20-P-4009-01GA | ||
| Fuel pump control unit, task | The fuel pump control unit actuates the fuel pump (M3). | ||
| Fuel pump control unit, design | The fuel pump control unit consists of control electronics and an integral wiring harness housed in a metal housing. The wiring harness leads to the fuel pressure sensor (B4/7), to the fuel pump and to an appropriate relay module. |
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| Fuel pump control unit, function | The fuel pump control unit processes the signal from the fuel pressure sensor and appropriately actuates the fuel pump by means of a PWM signal (pulse width modulated signal). This means that the required fuel system pressure of about 5.0 bar can be maintained for all operating conditions. |