Rail pressure sensor signal faulty
Measures fuel pressure and sends it to the engine control unit for optimal combustion.
Costs
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Most Expensive
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Cheapest case
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Probability
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HIGH
Typical consequences
If this defect is detected, it may lead to the following problems:
- Engine damage
- Failure of the exhaust emission test (Failure to pass the exhaust emission test)
Function of rail pressure sensor
The rail pressure sensor is an important component in modern common rail diesel systems and plays a crucial role in injection control. It measures the pressure in the high-pressure fuel line (rail) to enable accurate and timely injection of diesel fuel.
The sensor provides precise data to the engine control unit, which then regulates the injection quantity and timing. Correct pressure is crucial for the engine's efficiency and performance. Rail pressure sensors must be very resistant, as they are exposed to extremely high pressures of up to 2500 bar.