\u00a9 2023 wikiHow, Inc. All rights reserved. Replace your DPF sensor, that failing sensor will cause failed regens and will also keep kicking it into limp mode. Does anyone know what "normal" reading should be? Have 3 litre fiat and as self servicing will need multiecuscan. Steps. In an analogue way the upper range 4.8V5.0V is also reserved for sensor diagnosis. The ECM will set the fault if it detects that the aftertreatment diesel particulate filter is not present in the aftertreatment/exhaust system. I just watched an active regen on my 2007 2500. For a better experience, please enable JavaScript in your browser before proceeding. Diesel Oxidation Catalyst (DOC) faults: 3313, 3314, 3315, Faults that could be causing excessive soot generation, Fuel System faults: 559, 1139, 1141, 1142, 1143, 1144, 1145, ,4713 If the signal is indeed out of specifications, replace the sensor. DPF differential pressure: 1879, 1881, 1883 shipping them globally Explosion style low price we ship worldwide New Cummins DPF Differential Pressure Sensor 2010-16 PN 2871960 904-7127 w/Tube masr-alyoum.com, C $125.06 Find many great new & used options and get the best deals for New Cummins DPF Differential . Subscribers do not see these advertisements, To join in you must be a member of MotorhomeFun. P2454 GMC Diesel Particulate Filter Differential Pressure Sensor Circuit Low Voltage. 888.99.DIESEL. 23.65. w4wn said: You need to leave the pressure sensor module connected to the wiring harness. If the DPF has already been replaced during the repair (eg. Since soot is abrasive, when it is mixed with oil, will cause premature wear to the engine components like the bearings. This step will only work if you use Cummins Insite (version 8.5.2 or later) or an equivalent diagnostic tool which supports the test described below. 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. Part NO. Keep your vehicle turned off while you remove the pressure sensor. Free shipping for many products! Engine problems: If the engine has malfunctioned, it is possible that excessive soot is created, causing the DPF to get blocked. There are 15 references cited in this article, which can be found at the bottom of the page. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more! 7.If needed, shorten the tubes to achieve a 0-10 degree sensor tube down angle. But opting out of some of these cookies may affect your browsing experience. The ECM activates the fault codes based on the measured pressure difference across the DPF. It's important to rev the engine and check for voltage changes before testing anything else. Diesel emissions systems rely on sensors to send signals to control modules when maintenance on the aftertreatment systems is required or when something is no longer functioning properly and requires a repair. By comparing the pressure at these two points, the sensor can track the buildup of soot within the DPF and trigger the PCM to do a regeneration cycle at the appropriate time. Opt for a digital multimeter since they can perform multiple functions and will be easier to read while testing the sensor. Has this been figured out, I'm almost due for a test and not interested in finding and swapping out the exhaust. DPF-R will do the trick used one for about 8000 miles with no problem. Otherwise, you can remove the sensor and test the electrical resistance between the ports. The sensor is located on the Aftertreatment system, mounted directly on the DPF. 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). "I started off looking how to test the pressure sensor. Here are the DTC's 2079 , DPF differential press. The DPF differential pressure sensor is a different sensor that is necessary for filtration to function effectively. Send email to us. By clicking on them and completing a transaction on the merchants website, I earn a small commission at no extra cost to you. Just like any other filter, these must be maintained and eventually replaced - at great expense! The DPF's differential pressure sensor reads a specific pressure that must be programmed into your ECU. Phone Support: Monday - Friday, 8am to 5pm, Live Chat Support: Monday -Friday, 8am to 5pm, V-Band Clamps For Heavy-Duty Diesel Applications, How to Maintain Your Volvo D13 DPF Filter & Engine, Choosing the Best OEM Gaskets & Aftermarket Gaskets for Diesel Vehicles, Check engine light and various fault codes. One line is attached before the DPF. Why do so many guys on this forum change the Y-cable ? There are a lot of possible faults that could be triggering fault code 1922. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Soot load is estimated by the ECM, by monitoring the inlet and outlet pressure of the filter. You are using an out of date browser. If you replaced the assembly, validate your repair and then proceed to the next step. Too spendy to have it serviced at MB or Dodge , money I don't have . JD. I have same scanner and love it. 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