Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 528

INSPECTION PROCEDURE 34
EGR control solenoid valve system
The EGR control solenoid valve is controlled by the negative pressure resulting
from EGR operation leaking to port "A" of the throttle body.
Check the EGR control solenoid valve. (Refer to GROUP 17 –
Emission Control System.)
OK
Measure at the EGR control solenoid valve connector A-61.
Disconnect the connector and measure at the harness side.
Voltage between 1 and earth (Ignition switch: ON)
OK: System voltage
OK
Measure at the engine-ECU connector B-28.
Disconnect the connector and measure at the harness side.
Voltage between 6 and earth (Ignition switch: ON)
OK: System voltage
OK
NG
Check the following
connector: B-28
OK
Check trouble symptom.
NG
Replace the engine-ECU.
MPI –
Troubleshooting
NG
NG
NG
Repair
Probable cause
Malfunction of solenoid valve
Improper connector
short-circuited harness wire.
Malfunction of the engine-ECU
Replace
Check the harness wire between control relay and solenoid valve
connector, and repair if necessary.
NG
Check the following
connector: A-61
OK
Check trouble symptom.
NG
Check the harness wire between engine-ECU and solenoid valve
connector, and repair if necessary.
13B-47
contact, open circuit or
Repair