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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 2.0L (LUZ) Diesel - DTC P0016 To DTC P0406) >> Diagnostic Information and Procedures >> DTC P0192 or P0193: Fuel Rail Pressure Sensor Circuit >> Circuit/System Description

Circuit/System Description

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The fuel rail pressure sensor has a 5 volt reference circuit, a signal circuit and a low reference circuit. The engine control module (ECM) monitors the voltage on the fuel rail pressure sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The ECM uses this signal to compared the calculated desired fuel rail pressure with the actual fuel rail pressure from the fuel rail pressure sensor in order to maintain proper engine performance.

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