This listing features a high-precision Fuel Pressure Common Rail Sensor, officially identified by part number 55PP06-03. Engineered for advanced diesel injection systems, this solid-state component serves as a direct replacement for the OEM reference 9658227880. It is designed to provide real-time hydraulic pressure feedback to the Engine Control Unit (ECU), enabling micro-second adjustments to fuel injection duration and timing.
The 55PP02-03 is extensively utilized across European automotive platforms, including Citroen, BMW, and Ford diesel lineups. Utilizing high-grade piezoresistive sensing elements, it accurately measures the extreme pressures within the fuel rail (up to 1800-2000 bar). This precision is critical for maintaining the specific combustion stoichiometry required for Euro 4 and Euro 5 emission compliance. The sensor housing is manufactured from reinforced stainless steel to withstand the severe thermal cycling and high-frequency vibration characteristic of modern common rail engine bays.
A faulty 55PP02-03 sensor typically results in erratic idling, sudden “Limp Mode” activation, or persistent P0191/P0193 diagnostic fault codes. Replacing a degraded unit with this brand-new Fuel Pressure Common Rail Sensor eliminates voltage signal drift and ensures the ECU receives accurate pressure data. This ensures your Citroen, BMW, or Ford vehicle maintains its optimal power delivery, fuel atomization, and cold-starting reliability in all operating conditions.
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