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1.More Precise Dual Camshaft Control: Some Buick engines adopt a dual variable valve timing system, such as the engine of Buick GL8. This control valve is designed for this feature and can more accurately control the timing of both the intake and exhaust camshafts simultaneously. It can independently adjust the oil pressure and flow direction on the intake and exhaust sides, allowing both camshafts to reach the optimal timing angle. Compared with some similar products that can only simply control a single camshaft or have low control precision for dual camshafts, it can better optimize the engine's intake and exhaust processes and improve power performance and fuel economy.

2.Unique Oil Passage Design: The camshaft solenoid valve of Buick engines can control the engine oil to flow through the camshaft timing advance passage and timing retard passage. By precisely controlling the flow of oil in different passages, the camshaft position can be adjusted more flexibly. For example, under different working conditions such as engine startup, acceleration, and deceleration, the camshaft can be quickly and accurately adjusted to the appropriate angle according to actual needs. This precise control function based on the specific oil passage layout of Buick engines is difficult for universal control valves of other brands to replicate.