it looks like the VSV to me
it would be located on the driver side below the intake manifold
MK3 TSRM On-Line
and here
MK3 TSRM On-Line
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1991 Supra - Turbo - 5spd
60-1 upgraded turbo
Lexus AFM
3" exhaust, 4" tip
SAFC 2
550cc injectors (2 sets, venom direct fit, RC engineering)
2.5" intercooler and piping
Aluminum radiator w/dual electric fans
ARP bolts w/MHG
Full-auto turbo timer
Fidanza Flywheel & Stage 2 Clutch
spark plugs and wires.
power steering pump
cold temp start switch
engine top end rebuilt
transmission opened up and inspected at a tranny shop when the flywheel and clutch installed last week.
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