Engine’s performance suffers due to insufficient fuel, leading to misfires from running lean, rough running, or reduced power during acceleration or high RPMs.
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If your vehicle developed an issue that triggered a code P0087, you may notice the following symptoms: If the fuel pressure drops off, the engine’s performance will likewise deteriorate. The engine burns fuel to provide power for the entire car. What are the Common Symptoms of the P0087 Code? A broken or dirty fuel filter is one of the possible causes of code P0087. If the fuel levels reach critically low levels, the PCM may set a code P0087 even though it has nothing to do with the fuel rail’s pressure levels. Camshaft timing or camshaft lobe wear on the pump drive.Electrical problem with the High Pressure Pump Solenoid.Electrical problem with the Fuel Rail Pressure Sensor.Electrical problem with the low pressure fuel pump.A bad or failing fuel pump or fuel pump control module.A crimp or restriction in the fuel supply line.So your scanner shows code P0087-but what caused the fuel pressure in the fuel rail to get so low to begin with? What are the Possible Causes of the P0087 Code? Important Note: If any of the fuel supply lines or the fuel rail pressure sensor are removed on a common rail system, the component must be replaced, so don’t remove a line or a sensor unless you have a new one with which to replace it. In response, the PCM may log the P0087 code.
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It will warn the PCM if the pressure falls below the level expected of the fuel pump driver module or fuel pump assembly’s current activity. Once the need to support heavy loads passes and the engine can take it easier, the PCM reduces the pressure to conserve fuel.Ī pressure feedback sensor on the fuel rail measures fuel pressure. When the vehicle needs more power to run faster, drive uphill, or tow something, the PCM raises the fuel pressure to send more fuel to the engine. By adjusting the fuel pump or the fuel volume (or pressure) regulator, the computer can change the fuel pressure and the amount of fuel going to the engine. The PCM keeps track of the pressure levels within the fuel rail. Depending on the car manufacturer, the code’s definition may change. Note: Code P0087 is a generic code specified by the Society of Automotive Engineers (SAE). If the pressure in the fuel rail or fuel system drops past acceptable levels, it may trigger code P0087. What Does the P0087 Code Mean?ĭiagnostic Trouble Code (DTC) P0087 stands for “Fuel Rail/System Pressure Too Low.” It may get logged by the PCM when the pressure inside the fuel rail or the fuel system dives below the minimum levels needed to supply the engine with enough fuel to run properly. This code is only listed on vehicles that use “common rail” fuel injection (CRI).įor a technical understanding of common rail systems, read our in-depth discussion here.įor the definition of the P0087 code, as well as possible causes and symptoms, proceed to read below.
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If the pressure in the fuel rail or fuel system drops past acceptable levels, the engine’s computer sets the P0087 code.