4.
IS THE EGR SOL.VALVE ON WITH THE OPERATION NOISE ?
YES
a.
Go to step 5
NO
a.
Recheck the fuse and the EGR sol.valve.
b.
Recheck the wiring harness
c.
Recheck the fuse
d.
Go to step 5
Connect the scan tool to the data link connector(DLC) and start the engine
Go to the actuation test for driving the EGR sol. valve.
Pressing on the Start key
IS THE EGR SOL.VALVE ON WITH THE OPERATION NOISE ?
YES
Go to step 5
NO
Recheck the fuse and the EGR sol.valve.
Recheck the wiring harness
Recheck the fuse
Go to step 5
Fix the EGR actuator current data and check.
IS THERE THE MASS AIR FLOW AND THE EGR ACTUATOR PROPERLY DISPLAYED WITHIN SPECIFICATION WHILE IDLING ?
SPECIFICATION
450 ~ 510 mg/stroke (without EGR operation)
280 ~ 360 mg/stroke (with EGR operation)
EGR SOL. VALVE DUTY RATIO
95 % (closed position) ~ 20 % (opened position)
When the EGR actuator is 95% duty ratio, the EGR valve is closed by the ECM
When the EGR actuator is 20% duty ratio, the EGR valve is fully opened by the ECM
YES
The EGR system is O.K
Make sure there is no the DTC in the dignostic trouble codes menu
NO
Recheck the EGR system. For checking the EGR system, Go to "Component Inspection" procedure. For checking the MAFS, Go to "DTC 0101 Verification of Vehicle Repair " procedure.
Go to step 7
MONITORING FOR PENDING DTC SET ?
YES
Go to the applicable troubleshooting procedure.
NO
System OK
