Fuel Rail Pressure Sensor
WARNING: This page is about a different variant/trim than selected.
The fuel rail pressure sensor is a dual analog sensor that detects fuel pressure within the fuel rail. The engine control module (ECM) provides a 5 V reference voltage on the 5 V reference circuit and ground on the low reference circuit. The ECM receives a varying signal voltage on two separate signal circuits. The 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.