Acura NSX 1997 Service Manual page 370

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Throttle Valve Body
The throttle valve body is mounted on the servo valve body with the throttle valve built in.
Throttle Valve B, Linear Solenoid
Throttle valve B converts changes in the throttle opening to changes in transmission hydraulic pressure, to determine
transmission shift quality and lock-up operation. The throttle valve B also operates on accumulator back pressure to make
smooth changes from one gear to another.
The end of the valve contacts the linear solenoid which is controlled by the TCM.
The throttle pedal load has been reduced by eliminating the cable.
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