Check PCV
IG "OFF" and remove PCV valve from rocker cover.
Insert a thin stick into the PCV valve from the threaded side and verify that the plunger is moving.
Is the PCV valve normally moving?
YES
Go to "Check injector" as follows
NO
Replace it, and go to "Verification of Vehicle Repair" procedure.
Check injector for normal operation
Start engine.
Check its RPM decrease when doing the injector’s actuation test.
Is there any cylinder with no change in RPM or only a small change in RPM?
YES
Clear DTC and Test-drive under enable conditions above-mentioned. After the test, If this DTC is set, go to "Inspection & Repair" procedure. If not, troubleshooting is completed.
NO
Replace injector, and go to "Verification of Vehicle Repair" procedure.
