IG key OFF.
Check that AFS is installed in correctly according to the direction of arrow on AFS assy'.
Check contamination of air cleaner filter.
Turn engine ON.
Let idle rpm last after warming engine up.
Check the leakage of intake system. (the leakage or damage of intercooler)
Check that VGT operates correctly. (Check if VGT unison ring is stuck.)
Check that EGR actuator does not operate.
☞ EEGR actuator turns "OFF" 60 sec. after rapid acceleration.
Monitor "AIR MASS PER CYLINDER" and "EGR ACTUATOR" parameter on the scan tool. (At idle after rapid acceleration)
Reference value : When EEGR actuator does not operate (Approx. 5% duty) at idle : 400mg/st ~ 500mg/st
Is the measured value within specification?
 | ▶ Go to "Verification of Vehicle Repair" procedure. |
 | ▶ Replaces AFS, and go to "Verification of Vehicle Repair" procedure. |
In case of replacing AFS, perform the "COMPONENT CHANGE ROUTINE" procedure with scan tool. If the "COMPONENT CHANGE ROUTINE" procedure has not completed until automatic learning completed, it may cause vehicle performance and exhaust gas problem.
