Peugeot 2.0 HDI Fuel Pressure Sensor Wiring Harness Cable is a specialized component of the high-pressure system in diesel engines, responsible for a stable connection of the sensor to the control system. A properly selected wiring harness ensures correct reading of the diesel injection system's operating parameters, which translates to smooth engine operation and predictable response to load.
Specifications and technical data
- SKU: 9637798780
- Mark: Peugeot
- Condition: Used
- OEM Part Number: 9637798780
- Substitutable numbers: 9637798780
- Fuel type: Diesel
- Category: Fuel Injectors
Purpose and Role in the Diesel Injection System
The fuel pressure sensor wiring harness cable operates in close proximity to the injector rail and the engine control unit, therefore it must maintain adequate resistance to vibrations, temperature, and electrical interference. In a Diesel high-pressure engine, a correct signal from the fuel pressure sensor is crucial for:
- precise fuel delivery by the injectors,
- maintaining stable idle speed,
- limiting smoke and power loss during acceleration,
- proper operation of the engine control unit's diagnostic systems.
In case of damage or a break in the wiring harness, typical symptoms appear: limp mode, fuel pressure errors, jerking, or starting problems. Replacing only the sensor cable is often a more economical alternative to the costly replacement of the entire rail or the complete engine wiring harness.
Harness Construction and Installation Aspects
The offered component belongs to the group of injector nozzles, i.e., components directly related to the precise operation of the injection system. The harness is prepared for cooperation with Diesel high-pressure units, where a stable, shielded electrical connection is required.
During installation, it is worth paying attention to:
- correct routing of the cable, maintaining factory mounting points,
- secure fastening of connectors to the fuel pressure sensor and the main harness,
- checking the insulation condition in areas exposed to abrasion and temperature.
This approach limits the risk of recurring faults related to signal interference or circuit breaks.
Benefits of Using an Original Peugeot Harness
Choosing a harness dedicated to the Peugeot injection system ensures:
- compatibility with the electrical parameters of the engine control unit and the fuel pressure sensor,
- appropriate cable lengths, which facilitates installation without modifications,
- factory-type connectors, eliminating the need for soldering or using adapters,
- stable fuel pressure readings, which helps reduce injection errors and uneven engine operation.
In the case of high-pressure units, even minor interference in the signal from the fuel pressure sensor can lead to excessive injector wear, increased fuel consumption, and exhaust emission problems. Therefore, a proper wiring harness is an important element in preventing costly repairs.
Fault Diagnostics and Injection System Prevention
When fuel pressure-related errors occur, it is advisable to check both the sensor and the condition of the signal cable simultaneously. The guide Diesel Injector Faults – How to Recognize Them and What Their Neglect Entails, which describes typical symptoms and diagnostic methods for injection systems in high-pressure engines, may be helpful.
In the context of preparing the car for the low-temperature season, when the Diesel injection system is particularly stressed, it is also worth familiarizing yourself with the guide Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?. This allows for planning the inspection of components responsible for reliable starting and smooth engine operation.
Other Peugeot Injector Nozzles
If you are looking for other Peugeot injector nozzles compatible with a specific model and engine version, use the category Peugeot injector nozzles, where you will find a wide selection of injection system components for this brand.
