With Manual Transaxle
INSPECTION OF OUTPUT VOLTAGEUsing the SST (Engine signal monitor)
1. Connect the SST to the ECM as shown and connect a vacuum pump to the EGR valve.
2. Turn the ignition switch to ON.
3. Measure the voltage at the terminals as shown in the table.
4. If not correct at 3J terminal, check the wiring harness and 3I terminal of the ECM.
USING THE SST (NGS)
New Generation Star (NGS) Tester Connected To DLC-2:
1. Connect the SSTs (NGS) to the data link connector-2.
2. Select the "PID/DATA MONITOR AND RECORD" function of NGS and connect a vacuum pump.
3. Select "EGR" on the NGS display, the NGS measures and shows the values.
4. If not correct EGR valve position signal voltage, check the wiring harness and 31 terminal of the ECM.
INSPECTION OF RESISTANCE
1. Disconnect the EGR valve position sensor connector, and connect an ohmmeter.
2. Disconnect the vacuum hose from the EGR valve, and connect a vacuum pump.
3. Measure the resistance between the terminals as shown while vacuum is applied.
4. If not as specified, replace the EGR valve.