\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/65\/Test-an-Exhaust-Pressure-Sensor-Step-8-Version-2.jpg\/v4-460px-Test-an-Exhaust-Pressure-Sensor-Step-8-Version-2.jpg","bigUrl":"\/images\/thumb\/6\/65\/Test-an-Exhaust-Pressure-Sensor-Step-8-Version-2.jpg\/aid11734221-v4-728px-Test-an-Exhaust-Pressure-Sensor-Step-8-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. The DPF differential pressure sensor plays an important role in keeping the DPF functioning properly. DPFE Sensor Replacement Cost. If that doesn't work take it to a garage where they can force a regen using their equipment.. Hi.. well i couldnt find any examples on the of dpf traces on the current scope software. but there was a link to frank massey testing a dpf so hopefully that will give you some answers..if the link works, Fitted the replacement, second hand Sensor this morning, cleared the error codes and executed the "New DPF Sensor fitted" process to reset the ECU. Not if you can take control of the regen fuel map, it's there just have to find it, I can adjust it on engineering level insite on off road engines, can adjust the fueling value and the timing from almost less than a trickle to 2000* EGT temps.. now you're thinking! The soot load of the Diesel Particulate Filter is monitored by the DPF differential pressure sensor. Differential Pressure Sensor (DPS) - Exhaust Pressure Sensor - RPF Pressure Sensor In the exhaust system of your vehicle, the differential pressure sensor measures the pressure upstream and downstream of the diesel particulate filter, i.e. If you dont get any reading on your multimeter, make sure youre holding the probes against the correct pins. The engine should start with the signal wire back-probed. We had two dpf faults on our 2012 3.0 180 one when it was 6 months old they fitted a new sensor (or ceramic capacitor) thier words, it failed again after 4 years a new type of sensor was then fitted with new wiring and pipes by the Fiat dealer at a cost of 240 job done. During engine testing, the Cummins engineers have determined the allowed pressure difference levels on the DPF. i also removed the hydrocarbon doser and cleaned that, along with cleaning the imap sensor, cleaning the egr differential ports and sensor, the exhaust back pressure sensor, and even replaced the exhaust pressure . %
What is a DPF pressure sensor? Will be replacing the Y-cable tomorrow, then re-testing. General DPF faults: 2754, 3133, 3134, 3135, 3316, 3317, 3318, 3319, 3321, 3322, 3396, 5383 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. PM me if you are interested. By using our site, you agree to our. 99% Same Day Shipping - Multiple U.S. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. 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 Free delivery for many products! For many years, operators of commercial trucks have been trying to increase uptime and minimize unscheduled and costly roadside repair events. SKU: 904-7127 : Quantity: Share. DPF differential pressure: 1879, 1881, 1883 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. JavaScript is disabled. The differential pressure sensor on a diesel particulate filter (DPF) is used by the ECU to monitor backpressure and determine when regeneration is required to clear DPM or soot from the system. 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. The whole system must work in close-knit harmony to deliver a reliable drive, time and again. Engine problems: If the engine has malfunctioned, it is possible that excessive soot is created, causing the DPF to get blocked. use a multimeter and vacuum pump to test the pressure and voltage readings. endobj
Typically, the ground port is the leftmost or rightmost prong but it may vary depending on the sensor you have. $159.59. I'd strongly suggest getting either an "OBDLink" cable or Bluetooth device rather than trying to use an ELM327 device to connect Multiecuscan to your van, MES seems to have no end of issues with the cheap ELM units. But.even if you know the pressure how do you propose measuring it. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Simply the best offers on diagnostic tools for the US market. underneath/Bed extender/50-gal diesel tank/ 12K Winch/Nerf bars/ Etc. Le migliori offerte per Cummins DPF Exhaust Temperature Sensor Thermistor 18 Lead 229538 sono su eBay Confronta prezzi e caratteristiche di prodotti nuovi e usati Molti articoli con consegna gratis! We will create 2 new fault codes related to the DPF differential pressure sensor to check if the ECM detects the new conditions. If cleaning the soot and other carbon deposits from the sensor and hoses dont work, or if the sensor is melted or cracked, it needs to be replaced. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. 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. Also Mike, I do not idle it very long at all . Exhaust gas pressure - 120-150" Hg - Low could indicate a failing turbo. The vehicle then ran fine for about 197km then the background regens kicked in (no light on dash) and these were occurring every 1-16km according to Multiecuscan, which is when I get white smoke bellowing . For this investigation, an SKC pocket pump with integral pressure transducer (SKC Inc., Eighty-Four, PA) was used to collect the . At Balance Motor Works we take a holistic approach to DPF problems. Please use the following link when ever using Amazon.com. Frank Mc, have you gone ahead with the dpf delete? Cummins Quickserve Online Account for FREE! Check if the signal of the aftertreatment temperature sensors is within specifications. the difference between the two measuring points. The multimeter should normally display a voltage between 4.5 to 5 volts for referencing the 5-volt, a solid 0 volts for the ground wire, and anywhere between 0.5 and 4.5 volts for the signal wire. To replace it, simply remove the old one and replace it with the new one. Too spendy to have it serviced at MB or Dodge , money I don't have . Thanks to all authors for creating a page that has been read 45,868 times. 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. %PDF-1.5
It is also possible to check your DPF differential-pressure reading with a multimeter. By signing up you are agreeing to receive emails according to our privacy policy. The differential pressure sensor on a diesel particulate filter (DPF) is used by the ECU to monitor backpressure and determine when regeneration is required to clear DPM or soot from the system. Some of the add-ons on this site are powered by. x]ioFW;2yK++uA0]F+jd)A-3Y&69mG2:)J;eUSvm~rL|k\YLu=_&D0OEbDHr4tZNNGyy7v~:{;{\Sul+izT8=1O({ 4y~:uM^-IW{ju1s>OIL>~|~"~*nn,j>RbFi^mmdRXFO*9`
yL"g6S`V5K*JMIAhVrYgj'zQeJATelu*lj=E5,dYtN>*QNw]gkozj!ENDa!23mc2yN>iRb4teQFEeTrtf>a,HuXxXTO)9O.=x&:Mk6>TRA5i9N/Z!*$Y(S wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. ARghh.. Not again.. idling) might require a stationary regeneration, due to the fact that the average temperatures on the DPF are not enough to allow soot to be burned off passively. w4wn said: You need to leave the pressure sensor module connected to the wiring harness. The Differential Pressure Feedback Exhaust Sensor, or DPFE sensor, is part of the vehicle's exhaust gas recirculation (EGR) system. Of course I would change the oil again . The remaining DPF life is a calculated value based on a number of factors. +5 Volt supply, ECM Return, DPF outlet pressure signal, DPF differential pressure signal. For a better experience, please enable JavaScript in your browser before proceeding. Find many great new & used options and get the best deals for Black - Diesel DPF Particulate Filter Differential Pressure Sensor For Cummins at the best online prices at eBay! Your multimeter may also be labeled with the letter V with 3 horizontal lines on top of it instead of DCV. 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. These cookies ensure basic functionalities and security features of the website, anonymously. 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. To reduce the possibility of personal injury, always ventilate the compartment before servicing the . The engine may get hot while youre working so avoid touching it so you dont get burnt. I have that same scanner, it has allot of good info like that but if you don't know what parameters are good and or poor it's kind of useless. 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. I've got a long experience as technical trainer and training course developer. This enables the diesel particulate filter to remove more contaminants from the system and keep your diesel emission system working properly. In practice, they are not. If the difference exceeds 24oC (43oF), replace the temperature sensor module assembly (the 3 temperature sensors are connected on the same CAN-BUS module and cannot be replaced separately, or be repaired. Verify your repair and continue to the steps below. The Cummins ECM uses a Differential Pressure sensor to monitor exhaust flow through the filter. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. The online store you use should provide you with access to industry experts to help you if you run into an unexpected problem changing the sensor. I'm in a similar position, my van keeps throwing the p242f code and sending the vehicle into LHM. Consult OEM factory service information for the exact vehicle specs if needed. Cummins DPF Differential Pressure Sensor - 2871960. This filter traps particulate matter (also called "soot") created by the engine. Here are the DTC's 2079 , DPF differential press. One of the major complications these suffer from is the DPF - the Diesel Particulate Filter. The Fora platform includes forum software by XenForo. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The newsletter contains updates about new freebies, posts and new training courses that become available. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more! The signal output is described by a linear function: U = (0.82 x p +10) x 0.05 [V/kPa] Where: U = signal output voltage [V] DC p = differential pressure [kPa] 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 . Using a pressure gauge, measure both hoses. Pressure Differential in DPF - 138 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. The DPF's differential pressure sensor reads a specific pressure that must be programmed into your ECU. They should not be damaged or plugged. Finally, if youre looking to save money over OEM prices, consider an aftermarket DPF pressure sensor from a company based in North America. Differential pressure sensors are typically packaged with two ports to which pipes can be attached. Monitor DPF outlet pressure sensor voltage pin . Covers all these components including mounting hardware and gaskets: Complete Aftertreatment System (DPF and SCR System) Aftertreatment Differential Pressure Sensor Body and Mounting Hardware; Aftertreatment Fuel Pressure Sensor O-Ring; Aftertreatment Fuel Pressure Sensor Body This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c2\/Test-an-Exhaust-Pressure-Sensor-Step-12.jpg\/v4-460px-Test-an-Exhaust-Pressure-Sensor-Step-12.jpg","bigUrl":"\/images\/thumb\/c\/c2\/Test-an-Exhaust-Pressure-Sensor-Step-12.jpg\/aid11734221-v4-728px-Test-an-Exhaust-Pressure-Sensor-Step-12.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. At ambient temperature26C (78F) and above:Voltage reading should be between 0.642 and 0.738 Volts. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Once you remove the guts from the DPF, you will end up with a check engine light and the engine will eventually go into De-Rate. DPF Parts Direct.com is more than an online store, were backed by parent company DES, with 15 years of hands-on shop experience with diesel emissions systems including retrofitting and 42 years of diesel repair experience. Fired her up and instantly got totally different readings with no error codes. The more complex, the better! We know the equipment AND service end of the emissions industry! The ground and 5-volt reference should be identified first with their respective colored codes while backprobing any other signals that might need servicing. I'm trying to have a vehicle that I can trust at long distances from my home . Intake throttle actuator faults: 175, 176, 177, 3539, 3541, 3542, 5879, 5881, 5882 This fault code sets when the DPF outlet pressure is greater than 30 kPa (4.2 psi) for more than 10 seconds. To test if your battery is working properly, you'll need to connect the multimeter ground with one lead connected directly onto its negative terminal and run a quick "plausibility" check. All information on the channel is provided in good faith, however, we make no representation or warranty of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability, or completeness of any information on this channel. You dont want to go to all the effort and spend valuable time and money replacing a sensor only to have it fail prematurely because it is a poor-quality replacement part. The correct oil is hard to find and spendy . wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. what im trying to do is to actualy fool the ecm into thinking it is performing a regen successfully when it goes into a timed (forced) regen. if it was fully clogged), then proceed to step 9. If all's well on this end then it should show 12 volts or more when reading from the devices scale! If the soot load on the DPF is high, the ECM will activate the DPF system warning lamp on the dashboard. Soot load is estimated by the ECM, by monitoring the inlet and outlet pressure of the filter. One line is attached before the DPF. We are also having troubles with dpf sensor. Cummins Dpf Differential Pressure Sensor Reading If you are working in a diesel engine, then you know how important it is for the engine to have a good diesel particulate filter. However at higher rpm and load, things start to get crowded and that's where you'll see a difference. This prevents the valve from malfunctioning and allowing too much exhaust into the intake manifold at one time. The two pipes allow exhaust gas pressure from the inlet and outlet of the DPF respectively to reach the sensor. The Pressure Differential Sensor on your 6.7L Cummins tells the ECM how "full" your DPF is. My understanding is that the 40420 does not have DPF delete capabilities. That's the point behind controlling the map designated for the post injection responsible for the added heat and fuel for regeneration. By clicking on them and completing a transaction on the merchants website, I earn a small commission at no extra cost to you. In an analogue way the upper range 4.8V5.0V is also reserved for sensor diagnosis. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If the aftertreatment DPF differential pressure sensor voltage readings are within specification, then proceed to the Linked Solutions section. Enter your email address to receive access to exclusive offers. Use channel exclusive promo code road3333 to get 12% off of your order today. So if the front hose reads 1 PSI and the rear hose reads half PSI, the signal wire voltage should read somewhere around .8 volts. The sensor is located on the Aftertreatment system, mounted directly on the DPF. I have no egr either in the truck as it was all missing when I bought the truck. I don't see anything in the factory service manual that describes what the values should be. This leftover diesel fuel can wash away the oil film that protects internal engine components and can cause catastrophic failure. You just pull the 2 rubber hoses off. The cookies is used to store the user consent for the cookies in the category "Necessary". As I increase rpm to 2000 rpm (parked), back pressure increases to approximately 2000 hpa, and differential . If you replaced the assembly, validate your repair and then proceed to the next step. If you notice the numbers changing on the multimeter display, then the sensor has electrical resistance, meaning a current can pass through it and it will still work in your vehicle. The differential pressure sensor is one of the sensors in the diesel emissions system that communicates with ECU and the power-train control module (PCM) critical information about exhaust backpressure caused by the accumulation of diesel particulate matter (DPM) or soot. wikiHow is where trusted research and expert knowledge come together. If you don't notice a voltage change, first test all of their connecting hoses with a pressure gauge. DPF-R will do the trick used one for about 8000 miles with no problem. If you are wanting to be a little more accurate you can use an exhaust backpressure gauge that measures between 0-15 PSI. C - P244B CausedFrom a Full DPF. capacity of 0.250 L of air/min; (4) a pressure transducer capable of measuring to 0.1 in. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b9\/Test-an-Exhaust-Pressure-Sensor-Step-2.jpg\/v4-460px-Test-an-Exhaust-Pressure-Sensor-Step-2.jpg","bigUrl":"\/images\/thumb\/b\/b9\/Test-an-Exhaust-Pressure-Sensor-Step-2.jpg\/aid11734221-v4-728px-Test-an-Exhaust-Pressure-Sensor-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. The ECM activates the STOP ENGINE lamp immediately after a DPF differential pressure fault is determined to be active. Monitor these parameters during a regen, and you should have these values; EGR differential pressure - less than 0.5" Hg - if higher, could be stuck open/leaking EGR valve EGR valve position - 0% - EGR valve must be closed. Genuine Cummins 4358939 EGR Differential Pressure Sensor ISX12 and ISX15 Brand: Cummins $29548 Buy it with + + Total price: Add all three to Cart Some of these items ship sooner than the others. <>>>
If not, check the wiring harness for continuity and correct resistance (less than 10 Ohms). The DPF differential pressure sensor is located on the back of your car's engine compartment. <>
Already tried 2, but thank you all the same. Up to 9.5 mm [3/8in] can be cut off the aftertreatment DPF differential pressure sensor elbow fitting end of each DPF differential pressure sensor tube. Today's and tonight's Amsterdam, North Holland, Netherlands weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Previous Post I understand part of the initials ie damp proof but what does the f mean. Analytical cookies are used to understand how visitors interact with the website. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/ec\/Test-an-Exhaust-Pressure-Sensor-Step-5.jpg\/v4-460px-Test-an-Exhaust-Pressure-Sensor-Step-5.jpg","bigUrl":"\/images\/thumb\/e\/ec\/Test-an-Exhaust-Pressure-Sensor-Step-5.jpg\/aid11734221-v4-728px-Test-an-Exhaust-Pressure-Sensor-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. Free shipping. When diesel particulate matter blocks one or both of these airways to the sensor, the sensor can no longer accurately determine pressure changes, which can result in catastrophic damage to the DPF and ultimately the engine. If this happens, the DPF can become contaminated and eventually fail. TruckPartsAlley(dot)Com, featuring 131 items, including Intake Manifold Pressure Sensor MAP Cummins Volvo 20524936 3968437 AmericanBrand, Volvo Leveling Valve 85124912 VNL 670 2003-2019 MADE IN USA H01501UD, Cummins Throttle Position Sensor 132034 904-7692 TPS WM526 American Owned Brand!, International Throttle Position TPS Sensor 1697269C91 American Owned Brand! Typically, the engine operating conditions generate high temperatures and allow the passive regeneration of the DPF (self-cleaning). The sensor hoses can become clogged from soot in the exhaust system just like the DPF. Method . Keep your vehicle turned off while you remove the pressure sensor. You will never receive any spam from me. You get a considerable pressure drop (offset) with a high flow in a restricted passage, while it tends towards zero with a smaller flow. Cummins fault code 1922 becomes active when the soot load of the Diesel Particulate Filter (DPF) has exceeded the recommended limits. Sent from my H1611 using Tapatalk. CUMMINS DPF Differential Pressure Sensor 287196. Purchase your Cummins 2871960 DPF Differential Pressure Sensor here. I just watched an active regen on my 2007 2500. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. ya EGR has A LOT of sensors/modules tied into it. i pretty much gave up on figuring out a way to simulate EGR readings which is why i left mine in tact just plug it all in for testing. "I started off looking how to test the pressure sensor. Black - Diesel DPF Particulate Filter . 1 0 obj
What to Look For in a DPF Differential Pressure Sensor That is Failing . Keep your vehicle turned off while youre plugging in the pins so you dont risk getting shocked. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. :$:High tech old school and finally lovin it. http://www.cumminsforum.com/forum/6-7l-tech-articles/233548-egt-sim-basics.html. During passive regeneration, soot is burned-off from the inlet of the filter and extend its service life. 7.If needed, shorten the tubes to achieve a 0-10 degree sensor tube down angle. The pipes are then connected to the system where the measurement is to be made. While there seems to be benefits to these computer managed engines, they bring a list of problems as well. What is a DPF differential pressure sensor? You are using an out of date browser. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. my thoughts like i said were to manipulate the DPF sensor in a way that it would send the appropriate signals to the ECM telling that it is in Otherwise, you can remove the sensor and test the electrical resistance between the ports. whether or not its possible id definitely appreciate any help as i dont know about resistors and would definitely like to try this out was thinking of wiring up something to a set of switches that when flipped it will progressively fool the sensor into thinking the filter is actively cleaning or becoming blocked. During passive regeneration, soot is burned-off from the inlet of the filter and extend its service life. 4.6 V depending on differential pressure. Appreciate 0 Quote . % How does a DPF pressure sensor work? This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/1b\/Test-an-Exhaust-Pressure-Sensor-Step-10-Version-2.jpg\/v4-460px-Test-an-Exhaust-Pressure-Sensor-Step-10-Version-2.jpg","bigUrl":"\/images\/thumb\/1\/1b\/Test-an-Exhaust-Pressure-Sensor-Step-10-Version-2.jpg\/aid11734221-v4-728px-Test-an-Exhaust-Pressure-Sensor-Step-10-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. Engines that operate longer periods on light loads (eg. Below we've included a step-by-step guide to help: If you see that your voltage is off or there are huge differences in pressure values, then it could be time for a new DPF sensor. endobj This DTC is a two trip fault. Just like any other filter, these must be maintained and eventually replaced - at great expense! This article has been viewed 45,868 times. I suppose we could compare notes and perhaps get a baseline from newer vehicles but probably the best thing to do (if the vehicle is otherwise running normally) would to be to just look for any significant negative changes or trends over time. I can't live with the van as it is 08 . Without this sensor, the DPF would fill up with diesel particulate matter or soot and the truck would eventually be put into derate and would be restricted to limp mode which can be as little as 5 MPH. Inspect the DPF differential pressure sensor tubes. As implied by the name, it is responsible for continuously detecting the pressure difference between exhaust gases before and after the particulate filter. P r e p a r a t o r y S t e p s WA R N I N G Batteries can emit explosive gases. Check for EGR differential pressure sensor blockage. Common Rail Diesel engines have become more common in passenger vehicles in the past decade or so. An exhaust pressure sensor, also known as an EBP or DPF sensor, measures differences between your vehicle's exhaust before and after it passes through a filter. Components not supplied by Cummins are not covered under this Plan. 2020 Ram 3500, CM SK flat bed. The test runs for 30 to 60 minutes approximately. Lastly, check the signal voltage one last time. This also happens when the sensor fails because it leads to the DPF becoming clogged. Categories . Once you are done, connect all components, validate your repair and proceed to the next steps below. 2022/3500/6.7/68RFE/Crew C/SB/SRW/TRXOFFROAD Decals/Tradesman/4X4/FRTRPLBPR/TOOLBOX/RCHTRK/ 275 MTR's KEVLAR/ 2" leveling kit Front/1" rear/Metal Grid Protec. Learn more An exhaust pressure sensor, also known as an EBP or DPF sensor, measures differences between your vehicles exhaust before and after it passes through a filter. Does anyone know what "normal" reading should be? 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). The pressure sensor location is a bit different for each make and model. If you still cant find the pressure sensor in your vehicle, take your vehicle to a mechanic since the sensor may be built into the pipes. If any problems are found, check once more that you performed the checks correctly. You could also create a free QuickServe Online Account to access all Cummins manuals and wiring diagram for your engine. A diesel particulate filter (DPF) differential pressure sensor measures exhaust backpressure and signals when the power-train control module (PCM) should begin a regeneration process to clear the filter of diesel particulate matter (DPM), or soot.