- air and coolant temperatures when the ignition is turned on (pic. 3.24);
- in high mountain areas, depending on the air temperature, KSB switches off much later. Thus, the excitation time of the solenoid valve is increased;
- In all cases, KSB is deactivated if the crankshaft speed exceeds 2250 rpm-1 when the engine is running at full load.
Pic. 3.24. Graph of operation of the KSB solenoid valve depending on air and coolant temperatures