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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (On-Board Diagnostic - Pcm (VIN A) (1 Of 4)) >> DTC P0014-00: Hydraulic Variable Valve Timing Control System: Over-Advanced (PYUL) >> Details On DTCs

Details On DTCs

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P0014-00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Hydraulic variable valve timing control system: over-advanced
Detection condition Determination conditions
  • For the advance amount from the maximum exhaust valve retard position, a condition in which the actual advance amount is larger than the target value continues for a specified period of time.
Preconditions
  • Engine oil temperature: 20°C {68°F} or more *1
  • Hydraulic variable valve timing control: feedback mode
  • The following DTCs are not detected:
    • P0335-00 and P0365-00

    *1: Standard can be verified by displaying PIDs using M-MDS

Malfunction determination period
  • 5 s period
Drive cycle
  • 2
Self test type
  • CMDTC self test
Sensor used
  • CKP sensor
  • Exhaust CMP sensor
Fail-safe
  • Inhibits engine-stop by i-stop control.
Vehicle status when DTCs are output
  • Not applicable
Possible cause
  • Oil control valve (OCV) malfunction
    • Spool valve in oil control valve (OCV) is stuck in advanced position
  • Low engine oil level
  • Hydraulic variable valve timing actuator malfunction
  • Timing chain malfunction
    • Poor assembly
    • Looseness or jumping
  • Mis-detection of exhaust CMP sensor
  • Engine oil malfunction
    • Use of unspecified engine oil
    • Low engine oil pressure
    • Engine oil runners are clogged or have leakage
  • PCM malfunction