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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System & Fuel System - 6.6L (LLY) - Introduction (2 Of 2)) >> Description and Operation >> Turbocharger System Description >> Turbocharger Vane Position Control Solenoid Valve

Turbocharger Vane Position Control Solenoid Valve

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The vane position control solenoid valve (2) works in conjunction with oil pressure to control the turbocharger vanes. The solenoid valve has two circuits; a low control circuit and a high control circuit. The engine control module (ECM) uses a pulse width modulation on both control circuits to control the solenoid valve. The ECM will control the solenoid valve to allow the engine oil pressure (EOP) to move a piston (6). This piston rotates the unison ring, thus controlling the engine boost dependant upon engine load.