900 L4-1985cc 2.0L DOHC Turbo EFI (1985)
Thermal Vacuum Valve: Description and Operation
Fig. 68 PVS Valve
The thermovalve (PVS valve), Fig. 68, is controlled by the engine coolant temperature and shuts off the vacuum signal to the EGR valve when the
engine coolant temperature is below approximately 68°F (20°C). The thermovalve is located in the intake manifold towards the cylinder head.
