TVIS and VSV LEDs
As seen in the above picture, I have installed two LEDs in the dash that indicate when the ECU switches the TVIS (Toyota Variable Induction System) and VSV (Vacuum Switching Valve). The red LED...
Toyota MR2 Community Archive
As seen in the above picture, I have installed two LEDs in the dash that indicate when the ECU switches the TVIS (Toyota Variable Induction System) and VSV (Vacuum Switching Valve). The red LED...
TVIS Disconnect = MID RANGE GRUNT There are really only a few free mods, add this one. Give it a shot, if you don’t like it, switch it back! On hearsay, we disconnected our...
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