Purge control valve actuation function - GF07.61-P-3013GS
ENGINE 111.951 /952 /955 /956 /957 /958 /982 /983 with CODE (925) low emission EURO3
Fig 1: Purge Control Valve Actuation Function - Engine 111.951 /952 /955 /956 /957 /958 /982 /983 With Code (925) Low Emission EURO3
The purge control valve is actuated at the ground side by the ME-SFI control module by means of a pulse width modulate signal in order to control the purge quantity. The purge quantity is determined by constantly opening and closing the purge control valve for on and off periods of varying length.
The frequency of the PWM signal is selected from speed-dependent characteristic curve in such a way that all the cylinders are uniformly supplied with fuel vapors.
The purge control valve is actuated when the engine is at operating temperature, but not in the deceleration mode.
The following information is processed in the ME-SFI control module:
- Engine speed
- Air mass
- Coolant temperature
- Intake air temperature
| ME-SFI control module position / task / design / function | GF07.61-P-5000GS | ||
| Coolant temperature sensor position/task/design/function | GF07.04-P-5026G | ||
| Purge control valve position/task/design/function | GF47.30-P-4030L | ||
| Hot film mass air flow sensor position/task/design/function | GF07.07-P-4118GS | ||
| Crankshaft position sensor position/task/design/function | GF07.04-P-4116F | ||
| ME-SFI control module voltage supply function | Voltage supply of ME-SFI control module and purge control valve | GF07.61-P-5001F |