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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P040B - P204D)) >> Diagnostic Information And Procedures >> DTC P163B: Control Module Fuel Pressure Regulator 2 Control System Circuitry Performance >> Circuit/System Description

Circuit/System Description

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Fuel pressure regulator 2 is used to control the fuel pressure at the fuel rail. The engine control module (ECM) supplies the voltage directly to fuel pressure regulator 2. The ECM controls the solenoid by grounding the control circuit with a solid state device called a driver.

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