Kia Cadenza VG Owner's Manual Quiz
Engine Control System/Fuel System

Rail Pressure Sensor (RPS) Description and Operation

In this manual: Engine Control System/Fuel System
General Information — 15Engine Mechanical System — 95Engine Electrical System — 54Emission Control System — 24Engine Control System/Fuel System — 115Automatic Transmission — 91Drive Shaft and Axle — 13Suspension System — 35Steering — 19Restraints — 46Brake System — 43Body (Interior and Exterior) — 51Body Electrical System — 245Heating, Ventilation, and Air Conditioning — 56
~1min read

Description

The Rail Pressure Sensor (RPS) is installed on the fuel rail and measures the instantaneous fuel pressure in the delivery pipe. The sensing element (semiconductor element) built into the sensor converts the pressure signal into voltage. Using this signal, the ECM controls the correct injection volume and timing, and adjusts fuel pressure through the fuel pressure regulator valve if the target pressure and the actual pressure calculated from the RPS output signal differ.

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A quick Kia Cadenza VG Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.