Manifold Pressure/Vacuum Sensor: Locations

Electronic Vacuum Regulator Valve (EVRV).:

Top RH Side Of Engine

Applicable to: 1989 Grand Prix w/V6-173/2.8L

Manifold Absolute Pressure Sensor.:

Top Rear Of Engine, On Intake Plenum

Applicable to: 1989 Regal w/V6-173/2.8L