Description
Fuel pressure sensor for 1.6 HDi and 2.0 HDi. Used part with guaranteed functionality.
This fuel pressure sensor (OEM references 9670076780 / 1920GW) is designed for common-rail HDi diesel engines and provides accurate rail pressure feedback to the engine control unit (ECU). Compatible with a wide range of Citroën and Peugeot vehicles equipped with 1.6 HDi (DV6 family) and 2.0 HDi (DW10 family) engines, it helps restore correct injection timing and quantity when a faulty sensor causes drivability issues. Ideal for professional mechanics and experienced DIYers looking for a direct-fit replacement part that meets original equipment standards.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.6 HDi (DV6), 2.0 HDi (DW10)
- Product Codes: 9670076780, 1920GW
- Other Numbers: 9670076780 / 1920GW (OEM references)
Function And Benefits
The sensor monitors fuel rail pressure and transmits a precise voltage signal to the ECU. The ECU uses this signal to control high-pressure pump output and injector pulse duration, ensuring efficient combustion, smooth idle, reliable starting and optimal fuel economy. Replacing a faulty sensor often eliminates rough idle, loss of power and fuel-related fault codes.
Symptoms Of A Faulty Sensor
- Illuminated engine management light (fault codes related to fuel pressure)
- Hard Starting Or Difficult Cold Starts
- Rough Idle Or Stalling
- Loss Of Power Under Load And Poor Acceleration
- Reduced Fuel Economy Or Inconsistent Fuel Delivery
Common Causes Of Failure
Fuel pressure sensors typically fail due to contamination from dirty fuel, debris or degraded fuel filter elements that allow particles into the rail. Electrical connector corrosion, water in fuel, excessive vibration, and long-term exposure to pressure spikes in the common-rail system also contribute. Aging and internal sensor element wear are common on high-mileage vehicles.
Installation Recommendations
Before replacing the sensor, relieve fuel system pressure according to safe workshop procedures. Disconnect the vehicle battery to prevent electrical shorts. Unplug the electrical connector, remove the sensor from the fuel rail (typically by unscrewing), replace the sealing O-ring with a new one, fit the replacement sensor and reconnect the harness. After installation, prime the fuel system and check for leaks. Clear any stored fault codes and verify correct rail pressure values with a diagnostic tool. Follow vehicle manufacturer torque and safety specifications where available.
This used sensor is supplied with a guarantee of functional operation and is intended as a cost-effective replacement for worn or failed fuel pressure sensors on compatible Citroën and Peugeot HDi engines.
