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Fuel System

Rail Pressure Sensor (RPS) Description and Operation

In this manual: Fuel System
General Information — 15Maintenance — 7Engine Mechanical System — 84Engine Electrical System — 49Emission Control System — 22Fuel System — 95Clutch System — 28Manual Transmission — 21Dual Clutch Transmission (DCT) System — 47Drive Shaft and Axle — 20Suspension System — 36Steering — 23Restraints — 39Brake System — 54Body (Interior and Exterior) — 209Body Electrical System — 254Heating, 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 fuel rail. The sensing element (semiconductor element) built into the sensor converts the pressure into a voltage signal. Using this signal, the ECM can control the correct injection volume and timing, and correct the fuel pressure with the fuel pressure control valve if the target pressure and the actual pressure calculated from the RPS output signal differ.

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A quick Kia Cee'd quiz: every answer comes with an explanation and a link to the manual page.