Testing With SST
1. Connect the SSTs (NGS) to the data link connector-2.
2. Disconnect the vacuum hose from the EGR valve and connect the vacuum pump to the EGR valve.
3. Turn the ignition switch to ON.
4. Select the "PID/DATA MONITOR AND RECORD" function on the NGS display.
5. Select "EGRP V" on the NGS display and press START. The NGS measures and shows the voltage.
Specification
6. If not as specified, inspect the harness between EGR valve position sensor and PCM.
7. If the harnesses are okay, replace the EGR valve.