Component Inspection

■ PCV Inspection 

1. IG "OFF". Remove PCV valve from rocker cover.
2. Insert a thin tool into the PCV valve from the threaded side and verify that the plunger is moving.
3. Is the PCV valve moving correctly?

   YES 

   • Go to "Check injector" as follows.

   NO 

   • Replace PCV. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Injector Operation Inspection 

1. Start engine.
2. Check that RPM decrease when performing the injector's "Actuation Test".
   NOTE: The purpose of this test is to determine if there is a fault in fuel injection. Start this test in stable idle to get an accurate result.
   Fig 1: Scantool Display - Current Data And Actuation Test (1 Of 2)

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Scantool Display - Current Data And Actuation Test (2 Of 2)

   Courtesy of HYUNDAI MOTOR AMERICA
3. Is there any cylinder with no change in RPM or only a small change in RPM?

   YES 

   • Check injector for contamination, deterioration, or damage. Substitute with a known-good injector and check for proper operation. If the problem is corrected, replace injector and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Go to "VERIFICATION OF VEHICLE REPAIR " procedure.