Ford Egr Valve Diagram
How to test the ford egr valve egr vacuum solenoid dpfe sensor.
Ford egr valve diagram. Here s how ford egr works. Testing the ford egr valve egr valve vacuum solenoid and dpfe sensor on ford lincoln mercury and mazda. The egr system module esm is one of ford s latest egr system for gasoline engines. The egr vacuum diagram for your particular vehicle is displayed on the vehicle emission control information veci label.
The testing procedures shown in this video can be applied to any ford lincoln or mercury that uses a vacuum controlled egr valve combined with a delta pressure feedback egr sensor dpfe. Dpfe sensor also referred to as the back pressure transducer egr vacuum regulator evr solenoid egr valve and assorted hoses. Though the dpfe sensor on an esm is referred to as dpfe by the scan tool and also wiring diagrams it is not a traditional dpfe sensor as used on the older egr system. It is an egr valve evr map and dpfe sensor rolled into one package.
A delta pressure feedback egr dpfe that measures the change in exhaust pressure before and after a restriction in the exhaust tube that leads up to the egr valve. This location is atop of the engine near the carburetor usually towards the back of the engine near the firewall. Common symptoms of a bad egr valve. Page 1 of 6.
When certain driving conditions are met and the computer wants exhaust gas recirculation it provides a pulsing voltage to the electronic vacuum. It is actually two separate map sensors.