Variable Valve Timing (MAZDA6 & MIATA)

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The Variable Valve Timing (VVT) system continuously varies the open/close timing of the intake valves under all driving conditions, city or highway, low or high speed. System consists of a VVT actuator and an Oil Control Valve (OCV). See Fig 1-Fig 3 . The OCV operates in conjunction with the PCM that monitors engine RPM, Mass Airflow (MAF) and Engine Coolant Temperature (ECT) sensors.

Fig 1: Identifying Variable Valve Timing (VVT) Components (Mazda6 - 2.3L)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying Variable Valve Timing (VVT) Components (Mazda6 - 3.0L)

Courtesy of MAZDA MOTORS CORP.

Fig 3: Identifying Variable Valve Timing (VVT) Components (Miata)

Courtesy of MAZDA MOTORS CORP.