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DTC Description
This diagnosis detects clogs in the EVAP line between fuel tank and EVAP canister purge volume control solenoid valve.
ECM controls EVAP control system as below. ECM monitors EVAP line pressure change to diagnose if there is no clogging between EVAP canister and fuel tank.
  1. ECM closes EVAP canister vent control valve while the engine is running.
  2. ECM controls EVAP canister purge volume control solenoid valve. (Fuel vapor in EVAP line is absorbed by intake manifold pressure)
  3. ECM monitors EVAP line pressure change using EVAP control system pressure sensor. (When there is clogging in EVAP line, the path to the space of fuel tank is partially blocked. As a result, the pressure in EVAP line drops faster.)
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P00FE00EVAP system vapor line
(EVAP system tank vapor line restricted/blocked)
Diagnosis condition—
Signal (terminal)—
ThresholdWhen EVAP canister vent control valve is closed while EVAP canister purge volume control solenoid valve is activated, the pressure of EVAP control system drops extraordinary.
Diagnosis delay time—
 
 
POSSIBLE CAUSE
  • Fuel tank vent line (bent, clogs, etc.)
  • EVAP canister
 
 
FAIL-SAFE
Not applicable
 
 
DTC Confirmation Procedure
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 4 minute before conducting the next test.
: .
 
2.PERFORM DTC CONFIRMATION PROCEDURE
  1. Turn ignition switch ON and wait at least 1 second.
  2. Check DTC.
Is DTC detected?
Proceed to DTC Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END