Oil Pressure Test Plug: Removal
WARNING: This page is about a different car, the 2002 GMC Sierra and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Remove the pressure tap plug (2) and O-ring (1) that is located on the bottom of the converter housing near the control main filter. See Figure . Remove the O-ring from the plug and discard it.