GF07.61-P-3013M Purge Control Valve Actuation, Function

GF07.61-P-3013M Purge Control Valve Actuation, Function
- up to model year 08

Component Identification:

For controlling the purge quantity, the purge control valve is actuated at the ground side by the ME control unit by means of a pulse width modulated signal. The purge quantity is determined by constantly opening and closing the purge control valve for on and off periods of various lengths.

The frequency of the PWM signal is selected from a speed-dependent characteristic in such a way, that all cylinders are uniformly supplied with fuel vapors.

The actuation is performed in the suction mode when engine is at operating temperature, however not in the deceleration fuel shutoff mode.

The following information is processed in the ME-SFI control unit:
^ Engine speed
^ Boost pressure
^ Coolant temperature
^ Boost air temperature
^ Lambda signal.