EGR Valve Position Sensor: Testing and Inspection
Inspection1. Remove the air intake hose.
2. Disconnect the EGR valve position sensor connector.
3. Measure the resistance between terminals A and B by using an ohmmeter.
Specification: 2.7 k Ohms
4. If not as specified, replace the EGR valve.
5. Connect the EGR valve position sensor connector.
6. Connect the air intake hose.
7. Connect the SSTs to the PCM.
8. Disconnect the vacuum hose from the vacuum tube and install a vacuum pump to the valve.
9. Turn the ignition switch to ON.
10. Measure the voltage at the PCM terminal 3J.
11. If not as specified, inspect the harness and connector between the EGR valve position sensor and the PCM terminal.
12. If these harness and connector are OK, replace the EGR valve.