1988-95 (Ported EGR Valve)
WARNING: This page does not describe the selected car, but rather 128 other vehicles, including the 2015 Acura TLX, 2015 Acura RLX, 2015 Acura RDX, 2015 Acura MDX, and 2014 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure engine is at normal operating temperature. Disconnect EGR valve vacuum hose, and connect a hand-held vacuum pump to EGR valve. Start engine. Apply at least 6 in. Hg to EGR valve.
- If engine stalls and gauge holds vacuum, EGR valve is functioning properly. Connect a vacuum gauge to EGR hose. Increase engine speed to about 3000 RPM. If vacuum is shown on gauge, system is functioning properly.