TVIS
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 turns on when the ECU provides ground to the TVIS pin on the ECU. This indicates that the ECU has opened [...]
Tags: LEDs, Lighting, TVIS, VSV
View the original content on Lovehorsepower.com
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 TVIS to see what happened to the low end and midrange, and from SOTP testing, we maybe lost a little low [...]
Tags: TVIS
View the original content on MKII MR2 Mod Project
Disclaimer: This documentation in no way replaces the Toyota MR2 Repair Manuals. The purpose of this content is only to provide supplementary information to fellow MR2 enthusiasts. Midship Runabout and its contributing authors will not be held responsible for any injury or damages that may occur as the result of practicing any of the methods or procedures described within this website.