Fuel EVAP Control System (ES300)
WARNING: This page is about a different car, the 2002 Lexus RX 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
Start engine and disconnect vacuum hose. See Fig 1. Ensure vacuum occurs at VSV port when choosing ACTIVE TEST and PURGE VSV on hand-held tester. Finish ACTIVE TEST then connect vacuum hose again. After going to ECM DATA MONITOR on hand-held tester, choose PURGE VSV to check operation of purge VSV. After warming up engine and driving vehicle, ensure VSV turns on from off.