cummins dpf differential pressure sensor reading

wikiHow is where trusted research and expert knowledge come together. If not, check the wiring harness for continuity and correct resistance (less than 10 Ohms). The ISX CM871 was a big deal, as this is the first year Cummins started to place diesel particulate filters (DPFs) in commercial trucks. Check my guide on how to create an account or my training courses on how to use QuickServe Online effectively. check wiring diagram). Be careful in removing the sensor and hoses, as there are other sensors in this area that can be easily damaged. The Cummins ECM uses a Differential Pressure sensor to monitor exhaust flow through the filter. The cookies is used to store the user consent for the cookies in the category "Necessary". Free shipping. '6 sMZiMDLWzRu7h55 SDhGCp]%iO '#Tgq&YK_/inyx*TEa"|E$8qRB B8~ Pc#V. This means that the DPF Outlet sensor is reading high due to a restriction in the exhaust or faulty sensor Was it the outlet sensor you changed? Active and stationary regeneration of the DPF will be disabled. Here ya go, using the search function for this thread,, I have the three 100 OHM sims used for the DPF; Used very little until I went with EFI live, a couple of years ago. I had a conditional pass but only aloud that one time, now need to fool it or return to stock. What is a DPF pressure sensor? If you've checked both of the above, then it's time to remove that DPF filter and have it cleaned and checked. The pressure sensor location is a bit different for each make and model. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. :$:High tech old school and finally lovin it. Fault codes 1879 and 3134 should become active. 1. If this happens, the DPF can become contaminated and eventually fail. In the most extreme cases, a DPF failing can create an environment where the exhaust gas can not be fully purged. 8C3A9G824AB 137423 C17G2807851 8C3Z9J460D 0741584Z03 1778137 . Cummins ISX 15 DPF Differential Pressure Sensor Diagnosis & Replacement - Kenworth T660 Trucking & Fixing With Ryan 53.3K subscribers Subscribe 48K views 2 years ago Here is the link to the PDI. Can anyone advise on what the typical DPF Sensor readings in mbar would be in the following situations..? TROUBLESHOOTING: Check for other fault codes, if codes 3609/3 or 3609/4 are present. It is extremely frustrating when a work truck that is supposed to earn you money is unable to do what it is designed to do because a sensor has failed, and it is even worse when it breaks down and then requires a mobile mechanic and/or a tow to a repair shop to get it fixed and back on the road. The exhaust backpressure will build and with nowhere to go can end up back in the combustion chamber causing the soot to mix with the engine oil. It is not easy to miss there are two flexible pipes connected on the sensor body. I have no egr either in the truck as it was all missing when I bought the truck. Cummins fault code 1922 becomes active when the soot load of the Diesel Particulate Filter (DPF) has exceeded the recommended limits. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. 3 0 obj This filter traps particulate matter (also called "soot") created by the engine. Check out my diagnostic tool suggestions! Share this: Twitter The DPF's differential pressure sensor reads a specific pressure that must be programmed into your ECU. if it was fully clogged), then proceed to step 9. Typically, the engine operating conditions generate high temperatures and allow the passive regeneration of the DPF (self-cleaning). NEW Genuine Cummins OEM differential pressure sensor 4384138. If you don't notice a voltage change, first test all of their connecting hoses with a pressure gauge. If we can find it, we should be able to cut post inject to next to nothing where as when the regen is initiated there is actually nothing happening externally but you are telling the ECM that is is happening and it's happy. Make sure the battery voltage is about 12.6 volts. This website uses cookies to improve your experience while you navigate through the website. If you bring your filter into a DPFCleaning.com center, we'll check the filter over and give you a condition report as to whether the filter can be cleaned or not. This enables the diesel particulate filter to remove more contaminants from the system and keep your diesel emission system working properly. Simply the best offers on diagnostic tools for the US market. Turn on the ignition switch without starting the engine. Replace the DPF. Show details This item: Genuine Cummins 4358939 EGR Differential Pressure Sensor ISX12 and ISX15 $295.48 Lisle 19852 Truck and Trailer Wheel Pan $14.67 This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. They worked, but I had the CEL. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Electrical sensors in an engine have wires to the ECU that can be damaged from road vibrations or crack and melt from extreme heat. Useful articles and Training courses about Diesel engines. This article has been viewed 45,868 times. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Check out my diagnostic tool suggestions! The ECM activates the STOP ENGINE lamp immediately after a DPF differential pressure fault is determined to be active. The DPF differential pressure sensor can stop signaling to the PCM for regeneration. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. 99% Same Day Shipping - Multiple U.S. Here's how to test the DPF. Another ? Monitor DPF outlet pressure sensor voltage pin . Important to note: The vehicle or machine manufacturer is responsible to construct the wiring harness and allow the sensor to eventually connect to the ECM. Categories . However, it is usually mounted on the aftertreatment assembly with a heat shield to protect it from heat or in the engine compartment again to protect it from the heat generated by the diesel emissions system. <> If you are wanting to be a little more accurate you can use an exhaust backpressure gauge that measures between 0-15 PSI. To replace it, simply remove the old one and replace it with the new one. The DPF sensor measures the pressure drop across a DPF. for example on a deleted truck that the aftertreatment system hasnt been disabled only codes shut off, the truck will want to go into a timed/forced regen even though there is no DPF. The DPF system is still used on commercial trucks today. I listed the most important troubleshooting steps below. I'd like to get the GDE tune and am also considering deleting the DPF because I want a reliable van that doesn't leave me stranded hours from home on a regular basis. Thank you in advance for your support! Product Detail. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Engine misfire: 1654, 1655, 1656, 1657, 1658, 1659 If the soot load is high, a higher pressure difference is observed, because the accumulated soot will provide a restriction to flow on the DPF inlet side (Inlet pressure > Outlet pressure). +5 Volt supply, ECM Return, DPF outlet pressure signal, DPF differential pressure signal. The parts tend to make up the majority of the cost, usually between $100 and $400, while the labor might only be $50 to $100. We changed B28/8 sensor, check cables resistance to ECU = 0,7 OHMS all three cables, and check the two small tubes to dpf for leaking all good like new, made two regeneration and mark in Xentry as DPF has been renew and still problem come on after 50 km or less. Product Benefits: Quality Control Cost Effectiveness High System Accuracy . During engine testing, the Cummins engineers have determined the allowed pressure difference levels on the DPF. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. endobj If you want to check the sensor while its still attached to your vehicle, use a multimeter and vacuum pump to test the pressure and voltage readings. Adding another set of data-points from a 2007 3500 with recent recurring, key-cycle resettable LHM issues and a 2626-1 DTC as shown on my new MD802 scanner: Exhaust Back Pressure at idle - 1517 hPa. Connect your preferred diagnostic tool, read and list all other active fault codes OR inactive fault codes with more than one counts in the last 25 operating hours. This diagnostic is typically Diesel Particulate Filter (DPF) Pressure Out of Range High. I can't live with the van as it is 08 . Engine problems: If the engine has malfunctioned, it is possible that excessive soot is created, causing the DPF to get blocked. 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