Global Parts 1814939 Fuel Pressure Sensor - At Fuel Rail

Fuel Pressure Sensor for GM Fuel Rail Systems

Global Parts 1814939 is a fuel pressure sensor for modern fuel-injected engines that rely on accurate rail pressure data. It monitors fuel pressure in the fuel rail or fuel line and sends that information to the ECU/PCM so fuel delivery can be managed with precision.

Compatible With select Chevrolet Colorado, Silverado HD, Cruze, and Equinox models, as well as GMC Canyon, Sierra HD, and Terrain applications. Global Parts 1814939 is built around the OE-style electrical interface used on these vehicles.

Key Features

• Fuel pressure sensor for air and fuel delivery systems
• 4-terminal design with male terminals and a female connector
• Oval connector shape for the specified application
• Mounts in fuel rail or fuel line locations depending on vehicle application
• Direct replacement reference for GM fuel system service
• Global Parts 1814939 cross-references Standard Ignition FPS121 for the same application

Detailed Description

This fuel pressure sensor is used to report fuel rail pressure to the engine management system, helping the ECU or PCM maintain the correct fuel strategy under changing load and operating conditions. It is listed for 2016-2021 Chevrolet Colorado and GMC Canyon, 2017-2019 Chevrolet Cruze, 2018-2019 Chevrolet Equinox and GMC Terrain, plus 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD at the fuel rail, along with 2020-2021 Silverado HD and Sierra HD applications. The part number 1814939 is also referenced by OE and aftermarket numbers used on these GM platforms.

What It Helps Address

• Fuel pressure signal faults from a worn or inaccurate sensor
• Hard starting caused by incorrect rail pressure data
• Rough idle or drivability issues tied to fuel delivery control
• Check engine lights related to fuel pressure sensor performance
• Fuel system control problems on Chevrolet Colorado, Silverado HD, Cruze, Equinox, GMC Canyon, Sierra HD, and Terrain models

Installation Notes and Tips

Verify connector shape, terminal count, and mounting location before installation. This sensor uses a 4-terminal female connector with male terminals and does not include mounting hardware. Confirm the vehicle application and fuel rail location on the specific Chevrolet or GMC model before replacing the original unit.

Quality Assurance

Global Parts 1814939 is built for the fuel pressure monitoring role required by GM fuel-injected engine management systems. It is listed with OE-style interchange references, including Standard Ignition FPS121, to support accurate part matching during service.