DTC P04F0 EVAP System High Pressure Purge Line (CPC2) Performance: Notes
DTC DETECTING CONDITION:
Detected when two consecutive driving cycles with fault occur.
TROUBLE SYMPTOM:
Improper idling
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to
OPERATION
, Clear Memory Mode.>, and Inspection Mode <Ref. to
PROCEDURE
, Inspection Mode.>.
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK FOR ANY OTHER DTC ON DISPLAY. | Is any other DTC displayed? | Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". <Ref. to List of Diagnostic Trouble Code (DTC) .> | Go to step 2 . |
| 2 CHECK PIPING BETWEEN PURGE CONTROL VALVE 2 AND TURBOCHARGER. Check the piping between the purge control valve 2 and the turbocharger. |
Is there dislocation of the piping between the purge control valve 2 and the turbocharger? | Repair or replace the piping between the purge control valve 2 and the turbocharger. <Ref. to Turbocharger .> | Go to step 3 . |
| 3 CHECK PIPING BETWEEN PURGE CONTROL VALVE 2 AND TURBOCHARGER. Check the piping between the purge control valve 2 and the turbocharger. |
Is there clogging in the piping between the purge control valve 2 and the turbocharger? | Repair or replace the piping between the purge control valve and the turbocharger. <Ref. to Turbocharger .> | Go to step 4 . |
| 4 CHECK PURGE CONTROL VALVE 2. Check the purge control valve 2. |
Is there closed or open stuck state in the purge control valve 2? | Repair or replace the purge control valve 2 or leak check valve. <Ref. to PCV Valve .> <Ref. to Leak Check Valve Assembly .> | Go to step 5 . |
| 5 CHECK PURGE CONTROL VALVE 1. Check the main body of the purge control valve 1. |
Is there any leakage in the main body of the purge control valve 1? | Repair or replace the purge control valve 1. <Ref. to Purge Control Solenoid Valve .> | Go to step 6 . |
6 CHECK EVAPORATIVE EMISSION CONTROL SYSTEM LINE.
|
Are there holes, cracks, clogging, or disconnection, misconnection of hoses or pipes in evaporative emission control system? | Repair or replace the hoses or pipes. | Go to step 7 . |
| 7 CHECK VACUUM PUMP OPERATION OF LEAK CHECK VALVE ASSEMBLY. Check the vacuum pump operation of the leak check valve assembly. <Ref. to INSPECTION , Leak Check Valve Assembly.> |
Does the vacuum pump operate? | Go to step 8 . | Replace the leak check valve assembly. <Ref. to Leak Check Valve Assembly .> |
| 8 CHECK SWITCHING VALVE OPERATION OF LEAK CHECK VALVE ASSEMBLY. Check the switching valve operation of the leak check valve assembly. <Ref. to INSPECTION , Leak Check Valve Assembly.> |
Does the switching valve operate? | End. | Replace the leak check valve assembly. <Ref. to Leak Check Valve Assembly .> |