Our advanced, world-class technologies help you get the most out of your fuel system. The fuel delivery pressure sensor has a 5 volt supply circuit, a sensor signal voltage, and a return circuit. The Cummins ISX Fuel Pressure Relief Valve helps to regulate fuel pressure by bleeding off excess fuel pressure from the fuel rail. Cummins offers fuel injectors ranging in capability from 1600 to 2600 bar. Component Location Refer to Procedure 100 -001 for a detailed component location view. In a Duramax or Cummins diesel, a low-pressure pump first draws fuel from the tank and pressurizes the fuel to around 10 psi. This part has been updated multiple times and is a common source of everything from low power complaints to low fuel rail psi codes. It is a simple part that can cause major head aches. Many hard start issues and other fuel related issues can be tied to the factory rail pressure sensor. Cummins ISX Engine Fault Codes for the CM871 ECM (2007-2010 Engines) FAULT CODE 3582 - After Treatment SCR Catalyst Conversion Efficiency - Data Valid But Below Normal FAULT CODE 559 - Injector Metering Rail 1 Pressure - Data Valid But Below Normal Operating Range - … The fuel flows through a pressure fuel filter and fuel shut off valve to the fueling and timing actuators and rail fuel pressure sensor. These codes are not active all the time but when they do go active the truck losses power. I have changed the fuel filters the fuel prssure sensor and the gear pump. The engine derated for a day and then it finally went to 5mph. I replaced the fuel pump about 2 years ago, bought directly at Cummins. Summary, when idling (not touching it at all) fuel pressure claim all the way up, truck runs bad, fuel pressure goes down, truck runs fine again. Then a PCM-controlled inlet-metering valve (commonly referred to as the fuel control actuator or fuel-rail pressure regulator) controls the amount of supply pressure to the high-pressure pumping elements. Cummins has some of the best research, development and engineering minds in the industry. Benefits: The pressure-assisted design is more resistant to damage from fuel-borne debris than a pressure-balanced system. I am working on a 08 pete with a ISX cm871 the problem i am having is it keeps setting a code for low fuel delivery pressure and fuel filter restriction. Oct 24, 2012 Rockledge Florida 0. The Motor Control Module (MCM) monitors the rail pressure and when rail pressure deviation is greater than 200 bar for eight seconds, the MCM sets the code. When idling, the fuel pressure gauge goes all the way up and you feel the engine running rough. Cummins leverages over 80 years of Fuel Systems experience in its current operations, located in Columbus, Indiana; El Paso, Texas; and Juarez, Mexico. Fuel pump 2872399. Aug 11, 2014 #1. attackkatt Bobtail Member. low fuel rail pressure problem need help. Bosch 0281006327 Fuel Rail Pressure Sensor 07.5-12 6.7L Ram Cummins BOSCH-0281006327 2.00 Bosch 281006327 23 3. EFFECT: Power and or speed derate. Circuit Description: The fuel delivery pressure sensor responds to pressure changes in the fuel rail. 2012 Pete 386 kept getting Rail Pressure /Rail One faults on the dash .. Cummins ISX Specs. If you’re in the market for an ISX, its specification log includes: – 400-600 hp – 2,050 lb.-ft. maximum peak torque – 2,000-2,100 RPM engine speed Maximum of 2600 bar pressure rating; Common Rail Fuel Injectors. Low signal voltage detected at the rail fuel pressure sensor circuit. This fault can occur due to the conditions listed below: External fuel leakage between the high pressure pump and fuel injectors; Pressure limiting valve leakage (internal) Dodge Cummins Diesel Forum. pressure. A Cummins ISX engine is an Inline-6 diesel with a duel-fuel configuration — meaning it can run on diesel or natural gas — although, diesel is the most common. Cummins ISX Rail Pressure/Rail One fault Discussion in 'Trucks [ Eighteen Wheelers ]' started by attackkatt, Aug 11, 2014. Cummins produces and …
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