[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P0014 EXHAUST VARIABLE VALVE TIMING SYSTEM
Code No. P0014: Exhaust Variable Valve Timing System
 
 
 
 
OPERATION
  • Check code No. P0013: Exhaust oil feeder control valve system (Refer to ).
 
 
FUNCTION
  • The engine-ECU controls the spool valve position of the exhaust oil feeder control valve corresponding to the driving condition of the engine and continuously changes the phase of the exhaust camshaft.
  • The phase angle of the exhaust camshaft is computed from the signal patterns of the crank angle sensor and exhaust camshaft position sensor.
 
 
TROUBLE JUDGEMENT
Check Conditions
  • More than 20 seconds have passed since the engine starting sequence was completed.
  • Engine speed is more than 1,200 r/min.
  • Engine coolant temperature is more than 76°C.
Judgement Criterion
  • Difference between exhaust valve close timing and target exhaust valve close timing is more than 5°CA for 5 seconds.
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • None
 
 
PROBABLE CAUSES
  • Failed exhaust oil feeder control valve
  • Damage in exhaust oil feeder control valve circuit or loose connector contact
  • Failed exhaust timing sprocket operation
  • Clogged oil passage
  • Failed exhaust camshaft
  • Failed engine-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE data list
  • Data list reference table (Refer to ).
    1. Item 39: Exhaust V.V.T. phase angle
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
Go to Step 2.
 
STEP 2. Check exhaust oil feeder control valve itself.
  • Exhaust oil control valve check (Refer to ).
Is the check result normal?
Go to Step 3.
Replace the exhaust oil feeder control valve.
 
STEP 3. Check of damage in OCVE line between exhaust oil feeder control valve connector and engine-ECU connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check of damage in power supply line between engine control relay connector and exhaust oil feeder control valve connector.
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. Check exhaust camshaft sensing portion.
Is the check result normal?
Go to Step 6.
Replace the exhaust camshaft.
 
STEP 6. Check exhaust variable valve timing sprocket operation mechanism for being stuck.
  • Check exhaust variable valve timing sprocket
    (Refer to GROUP 11B - Timing Chain - Inspection ).
Is the check result normal?
Go to Step 7.
Repair.
 
STEP 7. Check oil passage of exhaust variable valve timing control system for being clogged.
Is the check result normal?
Go to Step 8.
Repair.
 
STEP 8. M.U.T.-IIISE diagnosis code
  • Reconfirmation of diagnosis code.
Is the diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).