The pressure in the TKVD is regulated by a valve (Y74), to which the pulse is applied (on-off) signal from the CDI control unit.
The injection control unit receives data for calculating the control action on the valve from a sensitive fuel pressure sensor in the fuel injection pump (В4/6). The determination of the operating value of the fuel pressure is made on the basis of corrective data from the atmospheric pressure sensor built into the unit, the coolant temperature sensor (At 11/4) and inlet air temperature sensor (В2/5b1).