At a minimum speed mode (850 1 \ minute) idling
microswitch xcontacts are open, because the throttle pedal
flap while fully released (recessed plunger). However, through the winding
solenoid current flows through the electrical connection terminals 1 and
2 control unit. If you increase the speed of the engine crankshaft
pressing the throttle pedal to 1 \ 1500 rpm or more, and
then the pedal is fully released, the xcontacts microswitch is tripped, and
electrical connection terminals 1 and 2, the control unit will also be open.
At the same time winding the solenoid valve is de-energized and the pawl EPHH
shuts off the fuel to the engine. Under these conditions, the engine is running
on the mode of forced idle.
When fully released throttle pedal
duration of treatment overrun with open transmission
very low (1-2), while driving a car and engine braking can be
amount to several tens of seconds.