System Inspection

1. Connect the SST (NGS tester) to the DLC-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.

Specification:

5. Select "EGRP V" on the NGS display and press START. The NGS measures and shows the voltage.
- If the harnesses are okay, replace the EGR valve.
- If not as specified, inspect the harness between EGR valve position sensor and PCM.