EGR Valve Position Sensor: Testing and Inspection

INSPECTION
1. Disconnect the ECM connector.




2. Connect the SSTs to the ECM.




3. Disconnect the vacuum hose from the EGR valve and connect the vacuum pump to the EGR valve.
4. Turn the ignition switch to ON.




5. Measure the voltage at the terminals as shown in the table.
6. If not as specified, inspect the harness between EGR valve position sensor and ECM.
7. If the harnesses are OK, replace the EGR valve.