General Description The BD Diesel 1036753 E-PAS Positive Air Shutdown is a great option when an emergency shutdown system is required in your 2019-2023 Ram 6.7L Diesel. The Electronic Positive Air Shutdown (E-PAS) unit works by cutting the intake air supply to the cylinders and safely shutting down the engine, The E-PAS controls the electronic throttle body in the intake manifold found on most late model diesel engines by dosing i to shut of the air supply in Features Emergency Engine Shutdown Does Not Set ECM Trouble Codes Can Be Installed In Less Than 1.5 Hours Automatically Resets After Shut Down Only The Switch Needs A Tool To Install Easily Removed For Truck Lease Returns Factory Plug In Connections And Wiring Harness Safely Shuts Your Engine Down If Over Speeding Save 3 Hours Installation Labor Over Mechanical Systems Over Speed Shut Down Control Utilizing Built In Intake Air Control Valve 24 Month / 24,000 Mile Warranty