1987
Toyota Supra turbo Heater
issue Pictures
1987 toyota supra
this picture shows the position of the vsv for the heater
it's right in the center of the picture behind the charcoal
canister.
this vacuum line has been swapped already
a close up of the vsv switch , out of the
1987 toyota supra Turbo

this little valve is not going up and down .
take the vacuum hose that comes from the manifold and plugs down low
and plug it onto the top like the picture above will cause the
vacuum to open the switch by-pass the actual part thats is cooked. you
step on the gas the valve opens and hot water flows into the cabin