Product Name: VVT Solenoid Valve; Engine Intake and Exhaust Camshaft; Engine Variable Valve Timing (VVT) Solenoid Valve; Automotive Camshaft Variable Timing Solenoid Valve; Engine Variable Timing Oil Solenoid Valve Part Number： 9665886280 9674091680 9674084680 1618QQ 9801887680 Improve working efficiency: When the vehicle decelerates, the pressure of the compressor is released, reducing its compression efficiency and quickly reducing its load, thereby extending the service life of the turbocharger. Stable Output: The electromagnetic force output is linear and stable, with minimal fluctuations in adjustment strength at high and low speeds. Its anti-electromagnetic interference design ensures it does not affect the vehicle's computer, sensors, or other onboard electronic equipment. Fault Symptoms: Noticeable jerking when starting at low speeds, sluggish power delivery when overtaking, insufficient torque when climbing hills; slight abnormal noises from the engine compartment after prolonged traffic jams; slightly excessive emissions during annual vehicle inspections, and a range of other issues., Manufacturer: GKQRKVNM