Circuit description
VVT system consists of engine control computer, camshaft timing oil control valve assembly, and exhaust cam sprocket. The VVT system controls the exhaust cam sprocket in order to provide the optimal valve timing according to driving condition. This control is based on various conditions including mass air flow, throttle position, and engine coolant temperature. The engine control computer, based on signals from these sensors, adjusts the camshaft timing oil control valve assembly. As a result, the optimal relative position of the exhaust camshaft is obtained, thus providing better fuel efficiency, superior output performance, and better emission performance. Also, the engine control computer detects the actual valve timing through the signal from the camshaft position sensor and performs feedback control to provide the most suitable valve timing.
| DTC No. | DTC detection condition | Suspected parts |
|---|---|---|
| P000B | 25-second accumulation of deviation between the target exhaust valve timing and the actual exhaust valve timing exceeds the threshold (bank 1). (2-trip detection logic) |
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| P0014 | A deviation between the target exhaust valve timing and the actual exhaust valve timing exceeds 8 seconds threshold (bank 1). (2-trip detection logic) |
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| P000D | 25-second accumulation of deviation between the target exhaust valve timing and the actual exhaust valve timing exceeds the threshold (bank 2). (2-trip detection logic) |
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| P0024 | A deviation between the target exhaust valve timing and the actual exhaust valve timing exceeds 8 seconds threshold (bank 2). (2-trip detection logic) |